I discourage you from sending your account credentials to a third party. You can provide screenshots of your account. Just need to add total withdrawal and total deposit. If I am not wrong, if you really did something wrong, they will not enable withdrawal for the rest of your funds. You are lucky you withdrew more than you deposited. Even if they don't enable withdrawal, you may simply avoid them.

I will advise BetHong to please try to solve this user's allegation. You can say clearly what was wrong and how this user abused your terms. Since the question was raised, it's better to solve it here; preferring to contact through mail won't be much helpful. When he didn't get a reasonable answer from the mail, then he came here. It's a matter of your reputation, of course, and it may affect your platform.