I've had a rebate denied once because they said it was not postmarked on time. This was crap I know I sent it in before the deadline, I called and complained a couple times and they eventually sent it to me. I have a feeling a lot of rebate processing center deny a certain percentage of rebates for BS reasons and see if people call in and complain. If they do they just claim "mistake" and send the rebate on it's way.