You have long ago received an answer in your case:
The account of this user was closed by the security team due to the violations committed on this account in relation to 1xBit, but still he was in profit made by alt-accounts at the moment of closure. This means that in total he has withdrawn more than he has deposited, and accordingly to the ToS, refund is no longer required.
As one of the company' terms, sensitive information wouldn't be disclosed.
For doubters, please welcome this post:
clickSincerely,
1xBit team
Reading this thread for a long time, you should know that the marketing team that is active on this forum cannot help you. The security team is responsible for blocking your account, and you can contact with them via e-mail. So don't waste your time spamming the forum, just resolve your case in the right way.