Are you dumb...? That's the order confirmation email. You get that first. When the xbox ships you get the tracking number. Xbox didn't troll you, you're just stupid, lol.
They DIDN'T troll you. An Xb1 serial must be the same amnt of digits that a FedEx Tracking # is. Outlook reads the message, if it mentions shipping it searches for either a FexEx or UPS Tracking number (it most likely recognized the serial as it.). I am assuming that is what happened.