Yeah, man. That is really sad. I've faced the same problems before. Since then I never deposit my funds to an unknown exchange without getting acquainted with its fees and withdrawal terms first. If withdrawal at any exchange requires completion of KYC process, first of all, pass the KYC and wait for your approval, and only when it says that you passed it, only then deposit your assets. This way, the exchange won't have legit reasons to deny your withdrawals.