Hello,

we do not close accounts because of wins, and do not confiscate a player's deposits even if he violated the ToS.

There are confirmed cases of big withdrawals mentioned in this post: click
Why 1xBit don't disclose proofs was explained here: click

Options on your account were disabled, as well as on your other accounts - having multiple account in order to circumvent the rules is prohibited, and specified in the rules measures were applied.
The total sum of your withdrawals already exceeds the deposited amount, so refund is no longer required - you are in profit after all.

Sincerely,
1xBit team