Well, this one is a breach of contract unless they make it henceforthwith only:
If a Customer is deemed by the Merchant to have lapsed, an Affiliate shall no longer be entitled to earn Commission of any nature on such Lapsed Customer. For the purposes hereof, a Customer shall be deemed to be a ‘Lapsed Player’ if he/ she has neither purchased nor played at a Merchant Casino or Merchant Poker Room for a consecutive period of 6 (six) months.
Unless they specify that this only applies to customers aquired afer a certain date, it’s breach of contract.