Self exclusion

Hi, I have also been in a similar situation, I was let in to a premises I was self excluded from. I had an urge to gamble that day and I’m sure that is what the self exclusion should stop me from. 
It was that allowed entry which spiralled into my life being ruined exactly 1 year after I had stopped completely. 
I think you can complain directly but I don’t think the money will come back now i am down a lot of money. 

the best way is to complain so nobody else has to go through the same thing. 

I can only speak for myself, but I think it's natural to have days which are tougher than others. I don't know how long you've had an issue but I had a gambling problem for 10 years, once I finally decided to admit defeat and put all the stops in place it was such a relief. You have to find other things to do, I made a point of saying to myself, everytime I think of having a bet, I'm going to go for a run, going to walk the dog, take a shower...anything. By time you've completed the activity the urge to gamble is gone, if it isn't do something else, go for the same walk. Go for a drive. Call someone to talk about the weather. Once you've done that, mark it down. Had a thought to place a bet, but went for a walk instead. Write it down and keep going back to it. I promise you, I was as bad as they get, ended up betting 25p to win 85p so I could bet 85p to win £2.50 so I could place bigger bets. Absolute desperation, but you can do it. It's tough, but you've got this my friend. You. Have. Got. Thissss.