Didn't Get Microsoft Pre-Order Bonus

My fathers credit card is linked to my brothers account on my Xbox. We both have different accounts and I bought and pre-ordered Halo 5 the day day before it came out. The bonus is downloaded and everything and when I played it I realized I didn’t have the req packs but my brother did. I thought everything downloaded on the One transferred to other accounts on it as well. Does anyone know the solution for this? It’s not a big deal but it would be nice to have a weapon skin because I haven’t gotten one yet. Thanks.