it's up to 1xbit.com team to explain, regardless of the reason, I think they should've already presented their case - regardless of it being bonus abuse, abnormal ip activity
Good that you mention that because I have forgotten to mention it by myself in the opening post:
-
bonus abuse: I didn't take the bonus. I do never take a bonus at any sportsbook. At 1xbit I cancelled it right after the registration and it was successfully removed from my account.
-
abnormal ip activity: I did not use a VPN/VPS/Proxy or something else to hide my IP at any time. I always used my own real IP from Deutsche Telekom.