"Your parent's Microsoft Account isn't valid." Can't sign in to Xbox Live

When I turned on my Xbox 360 after about a year, the notification at the bottom of my screen said my profile had logged in like normal. However, the large black tile in the Xbox Home screen showed up saying that I should connect to the Internet. Upon clicking
it, it tries to log my profile in to Xbox Live and fails. A message then pops up saying:

"Your parent's Microsoft Account isn't valid.

Your parent needs to choose a different

account to manage your Xbox profile.

For more info, please visit

www.xbox.com/fixid".

It then prompts me with either

"Change Parent Microsoft Account", or

"Play Offline".

I have:

-Put a credit card on my account so it is an adult account.

-Put a month of Gold Membership on the account.

-Made a fake parent account to use as a temporary fix, which gives me an error saying that Xbox Live sign in was unavailable.

-Chatted with two Xbox support personnel about my problem.

-Deleted the profile from my Xbox and added it again.

-Made another fake adult account to check if I could sign it into Xbox Live (Which it did).

-Tried playing an online game (COD:AW), but it had an update which required the use of a profile logged in to Xbox Live.

-Made my account an adult in a "Family" group.

-5Mbps Download, 1Mbps Upload to the Internet (Which is plenty for most games.).

If anyone could help me that would be appreciated.

:)

 

Parents Microsoft Account Xbox 360

When I try sign into Xbox live, I get this error message.

Your parent's Microsoft account isn't valid. Your parent needs to choose a different account to manage your Xbox profile.

We have tried to change accounts but that doesn't work either what should we do?

 

Your parent's account isn't valid

so I go to play my Black ops 2 game on my Xbox One when it doesn't sign me onto my Xbox live like usual. I go to sign in manually and it says that my parent's Microsoft account isn't valid and that they should choose a different account to manage mine. It
still gives me the option to play offline but I have no clue why it won't let me use my Xbox Live. It's not happening anywhere else on my Xbox as far as I'm aware.

Any suggestions?