Re: Oh pull the other one
As weird as it sounds... Yes.
If you had responded to say that you stopped because you were struggling financially because of it, or that you were becoming addicted (Or one of a number of other indicators) - you would be at least blacklisted from their service, have your account closed and given information about help providers.
We are not as yet required to add you to the GAMSTOP database blackisting you elsewhere (not in the instance you described anyway) - but you could refer yourself if you thought you were developing a problem. After that it would be very difficult to gamble anywhere in the UK which does proper identity verification.