I have made several successful fiat deposit via IDEAL and withdrawal, While trying another fiat withdrawal, suddenly Phemex gave message more support documents required. I submitted those and was able to make small amount fiat withdrawal successfully as test. Upon trying bigger withdrawal, it again gave same error message asking for another round of support documents!! After contacting customer support, same story i got that they detected suspicious activity and hence for security purpose documents need to be submitted, I submitted my documents to FOS TERBOO N . ORG instead, because I know Phemex will never help me, rather they will just keep on asking me for different irrelevant documents.