Just wanted to comment on this. Bet365 are quite superb. I have promoted them for a few years now and in my view they are the best run affiliate program and also the best run site for client experience too. They also pay very quickly indeed. I have also found their affiliate dept very helpful (Matthew is excellent).
They offer 30% commission, which beats most schemes, but their terms are that they carry over negatives. To ask them to change their terms and conditions just for you is a little cheeky, but if you don’t ask . . .
On a positive note, if your referred clients have won money recently then they are bound to continue playing and things will come right. You should be happy that you have players that are contributing a good turnover because without that you can’t earn big either. I advise you keep promoting Bet365 and ride the period when you have a negative balance. You may be surprised how quickly it comes right again. We have all been there.
Trust is the key issue between affiliates and the betting companies they promote. One of the many reasons I, like you, push Bet365 hardest is because I trust them most.