Here is another thread with the same problem
Link Ebay is not ready to reveal the meaning of "your account is related to a previously banned account".All those who got this email has only one account.All the emails to the quality team and other staffs were unanswered.If they are not ready to give a satisfactory explanation,how can they revert our earnings?.I think all those who have this problem were using BANS.I strictly believe that this is an "imaginary reason" to terminate accounts that is why they are not responding.
I expect a good response from ebay staffs.