Question: Has there been any story of a casino mistakingly crediting the wrong user account?
Well, that may or may not happen but in reality, they gotta set a rule that covers unforseen eventualities just Incase there's a need.
I haven't heard stories about such thing happening, but like I said earlier, anything is possible and the chances of a refund maybe be assumed an illegal trespassing by the account owner -- yunno what's funny? The casino can be sued for that.
The only one I think I’ve seen was someone whose Dickensian enter but the bet was given to him as a win but before he withdrew it they changed it back.
That's another thing to look out for; there might be a glitch somewhere and if the compilers are faulty, there's a chance it happens.
Again, every casino has a maintenance team that works standby to solve problems like debugging etc.. so, they'll always be way smarter and faster than you think you are.