Credit goes to HaYouGotRekTed on Reddit. There is a UFC 4 punch card on the Microsoft Rewards app on the Xbox. 6000 points for "purchasing" UFC 4. But if you have EA Access you can download a free trial which seems to count!
I purchased an EA Access 1 month trial from CD Keys for £2.99 and this worked for me. I didn't even have to download the full game. Went back to the UFC 4 punch card and I got the 6000 points.