ShopAtHome.com review: Offers big rebates, but won't pay after the purchase

ShopAtHome ripped me big time on paying me rebates that I had earned through their site.After I made the purchases(Puritans Pride)through SAH I wasn't getting paid the rebate, so On their site I used their trackback to prove that I used their site to make my purchase's but they claimed that when they contacted Puritans Pride that I went direct through Puritans Puritan's Pride so that was why they wouldn't pay the rebates(about $20-$25)even though they had the proof I went through and used SAH to make my purchases.So it doesn't make a difference if they say they are offering any % back if they don't pay the rebate after purchase, so buyer beware when using their "Cash Back"Site.