Cannot download Free Gold Game: Hitman Absolution due to "Child" or "Teen" ...

I am proud to say that I've owned my Xbox (Microsoft) account for about 9 years now. Yes, I started playing at around 8 years old on the original Xbox.

I can't say I remember how my father and I set up my account originally, but I do know that it is still marked as a "child" or "teen" account. This means I can't make any purchases or download any Rated-M games, yet I turned the legal age a few weeks ago.
Yet, it still says my account is a "child" or "teen" account.

Now, I think my account is linked to a "parent account", but I've never been able to unlink it and on my Xbox 360 dashboard, I have UNRESTRICTED ACCESS with access to ALL content (for my settings).

I also have no idea how to change my account to an "adult" account or make it so I can purchase and download Mature games now that I'm the legal age.

Anyone know how to solve this issue?

Edit: I want this to be fixed by tonight because I want to install Hitman for free.

:)

 

Hitman: Absolution "Games With Gold" version

Success! However, in all this fuss my saved game with near-100% completion got erased. If any of you find yourselves in the same boat, the trick is to erase all your Hitman: Absolution DLC and redownload that. Also, save your games on the Cloud because this
game has a nasty lost save game glitch also (in all formats).

 

Hitman: Absolution "Games With Gold" version

I had played this and beaten it and sold my copy a year or so ago, but I still enjoy it so when I saw it was free I downloaded it. But every time I try to play it, my Xbox completely freezes. I moved my original saved game to a memory unit so even a new
game will not load. What gives? Do I need the newer model 360 to run this game from my HDD?

 

Have a look at this link to help you with promoting your child account to an adult account

support.xbox.com/.../promote-child-account