How did you find out that your account was closed because of that joke in poor taste? Since live support didn't confirm it, I suggest waiting the 72-hour period, if your account remains blocked after that, contact the casino support team via email, as live chat doesn't always provide the reasons for an account block.
@perceptive541 Hi there and welcome to the forum.
It seems to me that your account may be temporarily disabled - to make you learn a lesson to be polite all the time to any casino's host! 😜
Yes, this sort of thing has happened before, albeit very rarely I must say, but the casino has the right to take disciplinary action against a player if needed to.
Wait for the 'cooling off' time to pass and try to log in again later, but I really wouldn't know how much later though - could be 1 week, could be 1 month, could be less even.