It’s really strange that you were unable to make a deposit at a casino that is advertised on the forum, such critical problems must be resolved immediately, because their future activities completely depend on this, but they will understand it themselves, the only question is how quickly.
He could not use his desired currency (in this case USDT) for the deposit but "only" Bitcoin. This has nothing to do with an error or a necessary bug fix, the casino probably only supports deposits in Bitcoin and nothing else. It is also not unusual and was the standard until not so long ago that crypto casinos only supported BTC deposits.
I can say for sure that since Bc.game managed to successfully fix their reputation issue on and with this forum [...]
I'm not sure which reputation issue you're talking about here? The recent accusations were all made up out of thin air and invariably the fault of the players in question

I also enjoy playing on BC.Game myself, although I tend to bet on sports rather than actually playing games like Crash and co.