A little late but just wanted to add in on this. I didnt use a referral link when I ordered. Went to a showroom and asked the staff if I could add it in. He brought out his manager to help. According to the manager, he has to send it through someone above him. So he sent out an email. Couple months later, after delivery the manager pulled through. I can see my free 1000 at loot box.
So its possible.