Major oversight with shipping

I think you should know something. When I received the collectors edition in the mail, I received a box with a serial number in it, as would be expected. The serial number is in the proper format (6 blocks of 5), and appears to be valid, though I have not tested it. The serial number I received in the box, which is presumably a valid serial, is not the one from my receipt, I have actually checked to verify that. Hence, anyone who printed off their receipt and paid to have the game shipped to them is, in fact, getting a free legal license of the game.