Priceline.com scams

When you go to Priceline.com you are asked to participate in their 'partnership programs' to put money in your 'house account. This house account money is used to cover the savings you supposedly get when shopping for groceries. One such program says get $20 cash for ten. It is not clear at all what they mean or where the ten is coming from...not anywhere on that particular page. Little do you know that every time you answer two easy questions your credit card gets charged ten dollars. You think you are putting in twenty free dollars instead of the ten priceline gives you for free. Its very confusing. I got my credit card statement and was aghast! Also, how are you saving when they are using your own money to cover the 'half price savings'? That means you pay for the other half with money from your own credit card! Priceline was rude and uncooperative with me when I confronted them with numerous letters. When I threatened legal action they credited me back the money, but not until they emptied out my house accout money that THEY had supposedly given me free. They said I'd used it up, but when I calculated how much shopping I'd done with them, it was impossible that I could have used it up. My friends and I have used email mailing lists to spread the word. Priceline never clearly answered any of my questions regarding their scam like practices. They only talked around the questions or never answered them directly at all.