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Greatwallsim Reviews 

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TrustScore 3 out of 5

3.2

Telecommunications Service Provider
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Company details

  1. Telecommunications Service Provider
  2. also in
  3. Cell Phone Store

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3.2

Average

TrustScore 3 out of 5

1 review

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3.2

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(1)

1 review in the last 12 months

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Rated 1 out of 5 stars

Simply unreliable, can't depend on it.

I had no internet after a couple of days after I arrived in China. Contacted the company twice, and I finally got an answer after 10 days. The reason for not having the internet is because the SIM card has been deactivated by the company. This happened last time, the excuse was because I switched device. This time I suppose because I was moving around different places. This company is simply unreliable. Luckily I also have an eSIM.

October 9, 2026
Unprompted review

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