Do you still have access to your account though? If so, you can try to email them and tell them you're not willing to give your documents away. I did that they ended up asking for some screenshots for the trading, deposit, and withdrawal history page (which make no sense obviously).
Yes, I have. Just tried to get some trading history of my Kucoin exchange, But can't able to get the trade history. I got some deposits history and take screenshots of them. Now going to send an email. Thanks a lot. Hope it will work for me
Or you can just create new no-kyc Kucoin account with new email address, that is if you don't have any coins left there.
That trading password is single point of failure and they had to protect it somehow, but I don't think that kyc is a good idea.
I have a few bucks there, So it would be nice to get back the account. So why trying to contact Kucoin exchange.
I will update here ...