my friend called in, and told them he had a canon...he never actually sent anything in, but just ordered a 60D with the discount...give them a call...tell them you have a t2i...
Exactly how long ago did he order his 60D? IIRC, they give you 10 or 14 days to send in the old camera (mine took longer because I couldn't get the return label to print). I imagine there's some delay in the recycling center reporting to Canon that the return camera was rec'd. And I'm sure there's a delay in getting the additional 20% charged back to your card, and having it show up on your statement.
I'd confirm w/ your buddy 2-3 months after he got the camera, that a charge for the additional 20% didn't show up on his card.
More importantly, why do you have to cheat the system? You can get broken bodies for $10-$20 off of here or ebay. If you can't afford to pay an extra $10-$20 to get a 20% discount, you probably shouldn't be spending your money on photography gear.