Currently I am using Binance wallet, but I heard that they can lock account and ask about these transactions.
Not a suggestion but just want to share with you that I already did lots of lots of transactions between Binance and a gambling site. Don't worry. If the transacton is not questionable, you shouldn't have a problem. Gambling sites are also a professional business.
Without valid proof that Binance locked up accounts about gambling transactions, don't believe in it.
Those who locked their accounts maybe violate other terms, not related to gambling.
You can risk out but for sure it is written into their TOS but since you do already have the experience and prove it out then its safe to presume that it is still possible to do so but always mind off the risk
because we dont know on whats up into their minds but if they do really mind off on getting users and retaining it then most likely they wouldnt really care at all on where those funds came from on the first place.