Its business but they should have at least followed on what the user had requested on when it comes to those kind of blocking or self exclusion because this is really part of their responsibility
but pretty much sure they had done it but this is actually on users fault in most case since he does know that he requested out something like that which he should presume that he wont
User asked to close his account because he is addicted. The casino continued to send him information about promotions. How could this be the user's fault?
If I make such a request and get a confirmation, why do I need to do additional tasks?