While I have been a FT member for many years, I have always taken the conservative approach to booking hotels to ensure I get credits for my stays. With sites such as Quidco giving cash back and Hotel.com giving free nights, I am abandoning my conservative ways. I am fairly certain nights booked with Priceline.com bidding disqualifies the stay but what about hotel.com or Expedia.com?

Does anyone have a definitive collections which sites disqualifies a stay for hotel frequent stay points and promotions?