Is the iphone box still sealed? or has it been opened? I have never heard of iphones being given away as prizes. I used to work for a fortune 50 company and they gave ipod shuffles away to customers at new store grand openings during drawings on opening day. After a while thay had to start giving away other prizes because apple stopped selling them in large quantities for those purposes. Also, really, how would someone steal a phone from a retailer, they are locked up like gold. I think its so funny that people want to save a couple of bucks to get something and then it ends up being a PITA. If you want one just go buy it legit.
Cmon, buying an iphone from craigslist, just sounds dirty, iphones are sweet and clean!
*just re-read OP and see that he said sealed box. If Canadian Bell sells the iphone to run on their network, don't know, and they give one away to an employee, I find it very hard to believe there is not any kind of paperwork to go with it.