I was using oister many years but now disappointed they charging so much money, I didnt even get a notice that they are going to charge much, or raised their abonement just like that take the money au... See more
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I must apologize to Oister for my previous posts. The service is really excellent, and my mistake was that I abandoned the 5G router and used a regular one, designed only for 4G. Yes, I switched to an... See more
Company replied
Oister has been great, quick and easy to switch to their service via digital sim card, it can be done in an instant, which is great if you have someone stalking your phone.
Company replied
Affordable, practical and it just works, even in long term trips in the EU outside DK, my OiSTER account holds strong, great coverage all over. I've been a customer since November 2019. I once switche... See more
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Company details
About OiSTER
Written by the company
OiSTER er et lavprisselskab med fokus på mobiltelefoni og mobilt bredbånd. Grundlaget for OiSTER har altid været at gøre det nemt og billigt for OiSTERs kunder. Det forsøger vi konstant at leve op til, hvorfor vi er stolte af vores slogan ’Bedst til prisen’.
Mobilt Bredbånd hos OiSTER:
OiSTERs mobile bredbånd er den bedste lavpris løsning på trådløst internet, som du kan tage med dig overalt i Danmark. Vi kalder det Danmarks nemmeste internet, fordi det er nemt og hurtigt at installere. Desuden benytter vi 3s prisvindende netværk.
Mobiltelefoni hos OiSTER:
OiSTER blev først kendt for at levere Danmarks bedste mobile bredbånd til prisen. Det er den samme tankegang, der danner grundlaget for mobiltelefoni hos OiSTER, nemlig at du får mobiltelefoni på landets bedste mobilnetværk - nemt, enkelt, overskueligt og ikke mindst til en konkurrencedygtig pris.
Grundidéen for OiSTER er, at dit mobilabonnement er gennemskueligt og uden binding. På oister.dk kan du nemt følge dit forbrug og eventuelt ændre dit mobilabonnement, hvis dine behov ændrer sig.
Mobilt Bredbånd hos OiSTER:
OiSTERs mobile bredbånd er den bedste lavpris løsning på trådløst internet, som du kan tage med dig overalt i Danmark. Vi kalder det Danmarks nemmeste internet, fordi det er nemt og hurtigt at installere. Desuden benytter vi 3s prisvindende netværk.
Mobiltelefoni hos OiSTER:
OiSTER blev først kendt for at levere Danmarks bedste mobile bredbånd til prisen. Det er den samme tankegang, der danner grundlaget for mobiltelefoni hos OiSTER, nemlig at du får mobiltelefoni på landets bedste mobilnetværk - nemt, enkelt, overskueligt og ikke mindst til en konkurrencedygtig pris.
Grundidéen for OiSTER er, at dit mobilabonnement er gennemskueligt og uden binding. På oister.dk kan du nemt følge dit forbrug og eventuelt ændre dit mobilabonnement, hvis dine behov ændrer sig.
OiSTER
Written by the company
Contact info
Fadet 4, 1799, København V, Denmark
- 70313070
- kundeservice@oister.dk
- www.oister.dk
4.1
Great
28K reviews
Asks customers to review
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the signal is very bad and it bothers…
the signal is very bad and it bothers me that you drastically reduce the internet speed in the evening hours, so I'm thinking about switching to another operator
March 30, 2023
Unprompted review
Reply from OiSTER
Dear Robert,
Thanks for your review.
Although we do our best to provide good coverage on our network, it is unfortunately not always possible to achieve broad coverage in all areas. There can be several factors that affect the quality of coverage, such as terrain, the number of transmission masts or the distance to the nearest mast.
In your case, it could indicate that the mast is overloaded in the evening hours due to high activity. There are some settings you can make on the router, which we could try out.
I would really like to get an overview of your case. Therefore, I hope you will write to me at trustpilot@oister.dk with your inquiry. As soon as I receive your email, I would like to take a closer look at your challenge.
I look forward to hear from you.
The best greetings,
Sofie
Great customer service!
March 13, 2023
Unprompted review
Reply from OiSTER
Dear Virág,
Thanks for your review.
We always do our very best to offer our customers the best in quality and service. It's great that you give your opinion.
We wish you a nice day.
Best regards,
Sofie
Great service, setup with eSIM and pricing
Great service and super easy setup with the free eSim. Perfect solution for me and great that I easily can manage everything online. Customer support gave great help as well when I needed it.
Good prices too! :)
January 22, 2023
Unprompted review
Reply from OiSTER
Dear Anne Sofie,
We are very happy about your review here on Trustpilot and then with a full 5 stars, thank you very much!
We always do our very best to offer our customers the best in quality and service. It's great that you give your opinion.
It is incredibly important to us that we always give our customers competent help and advice every time we are in contact. We are therefore pleased that this is also the experience you have had.
We wish you a nice day!
Best regards,
Sofie
ALWAYS DOUBLE CHECK YOUR DATA ROAMING WHEN OUTSIDE EU
After a questionable charge of 531.2DKK for having my data roaming on by default on a new phone while landing in Switzerland and India, a first fail with the website's customer service, and writing a bad review here, I was then contacted by Sofie from Oister's trustpilot customer service, which has been the most professional and understanding assistant. She helped me with my case and managed to restore my trust on the Company.
I also learned important lessons: never lose your hope and always double check data roaming when Outside EU!
February 2, 2023
Unprompted review
Reply from OiSTER
Hi Andrea,
Thanks for your review.
Like the airlines, we always recommend that you put your phone on airplane mode or turn off your phone completely, so that you don't get an unpleasant surprise with incorrect charges. But of course we also know that this sort of thing can easily slip away or there may be a situation where you have to use your phone.
Something that pulls data could be, for example, notifications from Facebook, Instagram, Snapchat, WhatsApp, etc. If you therefore have data roaming activated on your phone while you are outside the EU, you will automatically be connected to a foreign cell tower, and will be charged for any usage.
SMS and calls do not use data in the same way as if you surf the internet.
We offer free telephony in the EU, and since Switzerland is not part of the EU/EEA, we do not offer free telephony in this particular country.
It is possible to read more about our telephony outside Denmark in the link below. Below you can also find the countries we offer the places you're able to use your phone:
https://www.oister.dk/tips-og-tricks/eu-roaming/
I'm sorry to read if you feel like we gave you a terrible experience. Of course, it is not our intention or desire that you should sit with that feeling. However, I would like to help you take a look at your case. You are welcome to contact us on 70 31 30 70 or trustpilot@oister.dk, and we can look into it!
I look forward to hear from you.
Best regards,
Sofie
I have just moved all the family over…
I have just moved all the family over to Oister and my sons mobile has had no connections for days. I have tried to ring oister to sort it out, only to sit in a phone queue for hours..... this is not very good :(
February 5, 2023
Unprompted review
Reply from OiSTER
Dear Mark,
Thanks for your review.
Like many other companies, we are often very busy at the beginning of the month, which results in longer response times to e-mail and over the phone. However, we do our best to get through to everyone as quickly as circumstances allow.
I'm sorry to hear you've experienced problems using your son's phone. We must of course take a closer look at this, so that we can ensure that a similar scenario does not occur again - as it is in no way an appropriate experience.
I can't immediately see that you have been in contact with us at all.
I have just taken a look at your OiSTER Account and can see that there has been consumption on the subscription a few days after the number moved to OiSTER. Therefore, it appears that the subscription is currently working.
If you still experience problems using the phone, you are very welcome to write to me at Trustpilot@Oister.dk, so I can take a look at it!
I am looking forward to hear from you.
Best regards,
Sofie
God service!
January 31, 2023
Unprompted review
Reply from OiSTER
Hej Finn,
Tak for en flot anmeldelse med hele 5 stjerner!
Vi gør altid vores allerbedste for at tilbyde vores kunder det bedste indenfor kvalitet og service. Hvor er det bare dejligt du giver din mening til kende.
Hvis du får brug for hjælp, skal du være mere end velkommen til at kontakte os på 70 31 30 70 eller kundeservice@oister.dk, der står mine søde kollegaer klar til at hjælpe!
De bedste hilsner,
Sofie
Reply from OiSTER
Dear Valentina,
Thanks for your review.
I am very sorry to hear that you are experiencing a poor internet connection - It is not optimal!
When it comes to coverage, there will unfortunately be areas where we do not cover quite as widely. There can be various factors that play into this, such as terrain, a lower number of masts or the distance to the mast.
However, you can try to switch on data roaming on your mobile if you have not already done so, which gives you access to use 3's roaming partner, and will possibly catch a better signal.
I think we must take a look into this more closely, so that we can ensure that a similar scenario does not occur again - as it is in no way an appropriate experience.
Please contact us at 70 31 30 70 or send an email to 2ndline-tech@oister.dk with ATT: Sofie in the header, then I would very much like to help you from here.
I am looking forward to hear from you.
Best regards,
Sofie
I'm kindda of new customer (only a few…
I'm kindda of new customer (only a few months), but I can say that the internet is the best!. I life in the countryside and was paying an expensive fiber net that was problematic, disconnecting all the time. I changed to OiSTER cuz I though: if it is as bad as fiber net at least I am paying half. But it is strong, fantastic and we only bought 1 router. I recommend it 100 %
December 7, 2022
Unprompted review
Reply from OiSTER
Hi Emily,
Thank you very much for the nice review. - We greatly appreciate that.
We are really pleased that you are experiencing good coverage at your address, and that you are satisfied with our prices.
We are also super glad, that you want to recommend us :)
We hope for many good years with you as a customer
We wish you a wonderful day!
The best greetings
Lærke
Reply from OiSTER
Hi George,
Thank you very much for a good review.
I am glad that you had a good experience with our customer service. It's great that you give your opinion.
We strive to provide a really good service to our lovely customers!
I want to wish you a super nice day.
The best greetings,
Victoria
I have been a customer for 7 years
I have been a customer for more than 7 years now, I have Oister numbers for me and my entire family, and I recommended Oister to all my friends. Could not be more happy with the service, thank you!
November 23, 2022
Unprompted review
Reply from OiSTER
Hi Daniel,
Thank you very much for a great review :-)
We are happy to hear that you are a satisfied OiSTER customer.
We always want to give our customers the best service, so we really appreciate you noticing our work!
We also really appreciate you recommending us to family and friends.
We look forward to many good years with you.
The best greetings,
Simone
I'm very impressed
I'm very impressed. Leaving the company when I moved away took me literally a few clicks on the web page! Will come back as a customer again.
November 21, 2022
Unprompted review
Reply from OiSTER
Hi John.
Thank you so much for taking the time to review us.
We look forward to welcoming you at OiSTER again very soon.
We wish you a wonderful day!
The best greetings
Lærke
Super duper 😀
I have never experienced Any problems with them. Even when payment is slightly late they send a friendly reminder pr. SMS without making you Pay expensive fee's. Also they send u friendly reminders if you Are close to exceeding your download limits. The price is very affordable too. Customer service is tip top too. Nothing bad to say.
November 21, 2022
Unprompted review
Reply from OiSTER
Hello Jakob.
It is great to hear that you are happy and satisfied with the costumer service and our really good prices:)
We always strive to make it easy and simple at OiSTER and, of course, at good, cheap prices.
I wish you a wonderful day.
Best regards,
Lærke
Go somewhere else!
Go somewhere else!
I've had calls to EU charged, although my subscription very clearly included calls to EU.
First time, customer "service" returned to money, after many increasingly sternly worded emails. Second time they refused in the exact same scenario.
Luckily, the Danish tele market has a lot of operators who are happy to take over cancellations etc.
The Danish "Teleankenævn" is by the way where you go and submit a complaint for charges not in your contract.
November 7, 2022
Unprompted review
Reply from OiSTER
Dear Christian,
Thanks for your review.
It is correct that we offer EU-roaming telephony in our subscriptions. However, it works so that it is free to use your phone when you are abroad. That measn when you are in the EU, you can freely use your phone as if you were at home on a Danish network.
When you are in the EU, you can use SMS, MMS, calls and data for free.
What is not included in your subscription is sending SMS and making calls from Denmark to European phone numbers. Therefore, you will be charged for this kind of usage.
You can read more about consumption from Denmark to Abroad in the link below:
https://www.oister.dk/hjalp/forbrug/fra-danmark-til-udlandet/
The price depends on which country you are calling.
You can find the pricelist in the link below:
https://www.oister.dk/globalassets/filer/oister-priser-fra-dk-til-udlandet-24-11-2022.pdf
Best regards,
Sofie
Great mobile company
Great mobile company! Never had problems with them.... Always kind and helpful..... I tried some companies before.... Oister it is the best! Good quality of sound, great covering all over Denmark and very cheap..... I pay 89 Dkk for free talking and 40 GB..... Very cheap.... I will never move from OISTER. All my family having Oister and they are super happy. Thank you Oister.
November 11, 2022
Unprompted review
Reply from OiSTER
Hello Eilon,
Thank you very much for the really nice review.
We are very honored to receive a full 5 stars from you!
It's great to hear that both price, service and coverage meet your requirements - this is exactly what we want from our wonderful customers.
Thanks for sharing your opinion!
We wish you a nice week.
The best greetings,
Viktoria
God service og hurtig ekspedition
October 31, 2022
Unprompted review
Reply from OiSTER
Hej Jørgen,
Mange tak for de flotte 5 stjerner!
Hvor er jeg glad for, at du er blevet betjent hurtigt af mine søde kollegaer. Vi bestræber os altid på at give den bedste service.
Du ønskes en dejlig dag herfra!
De bedste hilsner
Viktoria
I appreciate Professional client…
I appreciate Professional client services, fast and easy to use application, individual approach.
November 6, 2022
Unprompted review
Reply from OiSTER
Hi Anna,
Thank you very much for the nice review.
I am pleased that you have always received professional service and support when you have needed it! I can promise you that we will always maintain the good service level and will always work to be better than we are now!
We also always strive to make it easy and simple at OiSTER and, of course, at good, cheap prices.
I wish you a wonderful day!
Best regards,
Lærke
I ordered sim card online and I didn't…
I ordered sim card online and I didn't get it during 15 days.
this is worst case that you enter new country and order sim card to manage your life and you don't get your order after 15 ongoing days.
Customer service line always Busy 70313070
October 25, 2022
Unprompted review
Reply from OiSTER
Hello Vahid.
I am very sorry to hear, that your simcard did not arrive in time.
Sometimes simcards can get lost in the mail, and we apologize many times, if that was the reason.
unfortunately we have slightly longer waiting times, especially at the beginning of the month, but the last week, our response time has been between 0-10 minutes.
If you do not receive your SIM card after 5 working days, simply contact customer service and we will of course send a new SIM card immediately.
We also offer eSIM, which can be ordered free of charge on our website, so you don't have to wait for a SIM card.
I wish you a great day.
Best regards,
Lærke
You don’t hire Oister
Don't make the bad decision to hire Oister!
We have done so and regret it greatly!
The new Oister sim card was supposed to be sent to us and never arrived. We no longer have service with the other phone company and no longer have service with Oister.
When you try to contact customer service and no one answers, the phone number doesn't work, and they respond to emails with DAYS of delay!
Really if you have a problem no one can help you!
Do not hire OISTER! I warn you so you don't have the hard time we are having!
October 11, 2022
Unprompted review
Reply from OiSTER
Hi Dani,
I am very sorry to hear that you have an experience that we do not provide a good service.
We have a strong focus on customer service, and we always strive to provide the best possible service for all our customers.
When we send a SIM card, it is sent with PostNord. Their delivery time is 2-5 working days. If the SIM card has not arrived within 5 working days, we encourage you to contact our customer service and point out that the SIM card has not arrived.
I will grant you that there is sometimes a bit of a wait to get in contact with our customer service by phone. It is typically busiest at the beginning of a new month.
It is also always possible to write an email directly to me at kundeservice@oister.dk ATT/ Viktoria if you want me to take a look at your specific case
The best greetings,
Viktoria
Unfortunately
Unfortunately, I ma part of the 50% of customers that find this company despicable. 1 star is too generous. I agree with the others that the customer service and the waiting time is horrible & you wait 30 minutes to be told that it is Post Nord fault that they have not send you a SIM card. Basically you pay your subscription and do not have a working phone and the only thing they can do is to say sorry, but you still have to pay, even if you do not have a phone???Not to mention that they close at 15:30 on Friday, and rest on Saturdays, when it is a services working day!
October 5, 2022
Unprompted review
Reply from OiSTER
Hi Maria.
I am very sorry to hear that you have not been able to get through to our customer service.
Unfortunately, we are super busy at the beginning of the month, which results in longer response times.
I would very much like to take a closer look at your case and try to find some sort of compensation, since of course you shouldnt have to pay for a subscription that doesn't work.
If you simply write to me at: kundeservice@oister.dk ATT: Lærke, I will do my best to find a suitable solution.
I wish you a great day!
Best regards,
Lærke
Terrible service.
September 16, 2022
Unprompted review
Reply from OiSTER
Hi Iva,
I am sorry to hear, that you had a bad experience with our service.
I would love to hear more about your experience.
You are very welcome to send me an email at kundeservice@oister.dk so we can look into it further.
I wish you a great day.
Best regards,
Lærke
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