After some research and input from other users, and now after verfying it myself and finally getting my items I can tell you all:

If you have another email address used for xbox live, your purchase is going to be sent to a different account than the one you initially purchase and play with.

After playing for 8 hours, I discovered just now that at the title screen, you can press tab to change your account. Do so, and then input the email address you got the confirmation email of your purchase from.

Now on this account, you will have your items.

I imagine this is still somehow going to screw some people over. Wish I hadnt wasted 8 hours yesterday on a character I will never play again, but at least I got my items now.,