So for example, you have an account there for a long time, then you forgot the log-in credentials and can't recover it in anyway. Then you created another one, and you deposited and won a fair amount, since you broke the "multi-account" thing in the ToS, will that be enough to not let the withdraw go through?
Read below quoted term:
So it is clear how to avoid being tagged by multi account in case you forget old account and create new account. Simply notify them about it and it will avoid any issues related to multi accounts thing.