Well, there was a 400 points deposit put in my account on the 4th May, the details section is dashed, whereas ones I've bought have the payment details there. Only thing I can think of is the RDR promo, unless anyone else can think of any promos I've forgotten about, and like I said, it wasn't the PD/Scrap Metal/Toy Soldiers/Games Room one as I didn't buy all of them.
Edit: And no, I didn't receive an email at all.