But did you follow the above posters suggestion? Live chat? bitcointalk ANN thread? I'll be adding their subreddit as well (https://www.reddit.com/r/kucoin)
OPs past posts says they are indeed a US person. BUT KYC for US persons isn't supported in kucoin...
OP: @kucoin_moderator can I do KYC from the US?
kucoin_moderator: Unfortunately, we don't support KYC verification of users from the US
kucoin_moderator: KuCoin has not made any adjustments to our policies. Out of respect to the company's operational requirements, we are only providing service for countries listed in the KYC countries list (US is not included), in order to comply with all applicable laws and regulations. If a user's country is not included in the list, unfortunately, we are temporarily unable to verify the user's KYC. Rest assured that on KuCoin, KYC is not mandatory, you can still do transactions even if you are not verified yet. However, there'll be a withdrawal limit of 5 BTC per 24 hours for unverified accounts. Thank you!
It's quite deceptive to still encourage a user from a restricted country to use your platform knowing there can be hidden precautionary setups that may require them to KYC.
But kucoin does seem relatively laxer, OP may have a chance to get their funds out after talking it out.