As said here
Effective either Feb 15 or quarter 2:
A)Bill pay, home improvement, and airlines are being removed from the rewards. Being changed to book store, cell phone, and sporting store.
B) You can only get 1 25 cash back bonus with a redemption of 100 per calender year.
C) Quarterly cap of 2000 qualified spending.
Too bad I never got a chance to abuse the rewards for their cards, but oh