LeoVegas may have committed a pretty big no-no. The UK Gambling Commision (UKGC) is investigating a claim that the operator accepted £20,000 ($26,220) from a problem gambler, and encouraged him to play more despite his problems.

The Guardian reports the player’s LeoVegas account was locked in May 2018 when a customer service agent noted “concerning” communications during a live chat. Sister sites Pink Casino and Castle Jackpot, also run by LeoVegas, then sent him marketing emails offering “free spins” and bonuses.

The player then set up a new account with 21.co.uk and lost thousands. When the site asked for identification, they figured out that he was using his mother’s credit card without her permission. As that’s a violation of site terms, his account was blocked.

That wasn’t enough to stop the madness though, as other LeoVegas sites once again courted him with marketing emails.