Dear
@Carol-Wen I read that fb simply deactivates accounts from some countries with no reason. I know a lady, living in Finland which account was deactivated for no reason, fb asked her to register her mobile (she used laptop), and then fb asked for a legal document like driving license, passport or another legal document, plus a video with her face in different angles, this according to the EU law is criminal activity, there's the article 43 that protects to all the EU residents, and gives the right to protect their identity and none, just police or government instances can ask and with a good reason such kind of legal documents, not just for fun, anyway, this lady was so desperate that she did everything fb asked her to, and fb reactivated her account for a month, and without warning, without any reason, because she is a woman in her 60s who uses fb to stay in touch with her grandchildren who live aboard the country, well fb canceled her account due to "suspicious activity", that was at the beginning of this year and since then she has written, even her grandson who lives in the UK called a fb center in her behalf, etc., in order to get back her account and nothing has happened. She wants back that account because is years of memories, anyway, her granddaughter who was visiting last summer, installed a vpn on her laptop, opened an outlook account for her, a MeWe account with which they have started to communicate with each other, and created another profile for her with a different name on fb, sent friend requests to the other grandchildren and told her not to do anything, other than stay in touch with them in the chat, which by the way with the encrypted-end-to-end message doesn't work for most of us who live in Northern Europe, me and thousands of other people cannot read any of messages appear blank, so they have start using MeWe.
I read as well that you won't be able to loggin in fb using your Chinese mobile, you must use a laptop or computer, and install a vpn or a virus protection program like f-secure that includes a vpn.
I'm so sorry for all you are going thru my dear. I hope in someway you will get back your account. Sending love.