You will run into a problem that your account banned you need to provide your documents it is better to verify your account first. The problem will be greater if  you used them and your country is not supported.
other reason is sending more than 10K $ of bitcoin.you may not be able to withdraw your coins without complete some verification.
you can withdrawal but will not be able to trade.

Annoyed or told that they are scammers will not change anything. Use decentralized solution.