Bought a Surface Pro 3 before December 20th: Where's my $100 Promo Code?

[ians18]

As the name implies, I don't know if it ships with the device, which is arriving later today, but I believe it was supposed to come by email?

I am talking about this promo:

Buy a Surface Pro 3 from Microsoft, get $100 promotional credit and a free sleeve | Windows Central


It comes with 100 dollar code... Does anyone know?