Maybe you have registered the wrong profile? Explain a little more whether you bought the games in the store or somewhere else and how many games approximately. Or you just call Xbox Support, I've called before and they're really nice. The opening times are from 9:00 a.m. To 5:30 p.m. I think. I'll link that to you here.
https://beta.support.xbox.com/contact-us
Thanks support took care