Each site has its own support team to solve problems and assist players in coming up with solutions. Every gambling site deals with solving a player's problem in its own way. Some cases take longer than others. You can't compare that. There are plenty of examples of other gambling sites that also take a lot of time to check things out. On the other hand, if a player has really violated the terms and conditions, then the player in question knows this very well and it is understandable that 1xbit closes the account and does not comment further on the substance of the case.
The issue of this victim is six months old and no solution has come yet. So is there any information on exactly how many months 1xbit takes to resolve an issue?
You are giving examples of other websites that they also get a lot of complaints. But reputed gambling websites address those issues, and provide all kinds of support to their customers without any excuses. But nothing more can be expected from 1xbit, because the status of their reputation is understood to be exactly what kind of service they will provide.