Account suspended for an unknown reason

Hello, my account with email: and invite code: ZTHYEB has been just suspended and I don’t know the reason why. In the email that gameflip sent me says that it’s due to an involvement in other suspicious or fraudulent activity, but I don’t really know what I did wrong. I had more than $70 in my wallet and over 270 positives ratings. I really need help, I don’t know where should I go to appeal the suspension.

Your account was suspended since it is an alternate account from a suspended one.

Unfortunately I’m unable to hel you further here.