99% of casino sites operating on this forum, have experienced accusations, such as: withdrawal, winning, blocking and so on, whether it's a motive or business rival.
I see some accusations against reputable casinos here, not based on facts, but looking to bring down the reputation of a business rival aka bullshit.
Conclusion: if there is a trusted and reputable casino on this forum, accusations and so on, I'm sure they will solve it professionally and responsibly, if there is an error on the part of the casino, except: the user himself is at fault, for example: losing a bet and other things that are indeed done by the user himself, for that a thousand kindnesses with one baseless accusation, will not make their reputation bad, a large percentage of people do not believe the accusation.
It is true that there are many reputable casinos but they still have some problems as you mentioned because nothing is perfect in this world, and if the problem lies with the casino and it has a good reputation, they will surely be resolved well and quickly to maintain its reputation.
And there are many small and even big problems in casinos that not many people know about or solve personally because they are also professionals and take great care of their reputation. Except for those who aim to destroy his reputation.