Why wont my battlefeild bad co. 2 work online?

When ever i try to play battlefeild bad co. 2 online on my 360 it says i have to create an EA account i do that then something pops up saying your xbox acvount dosnt have permission to acsess this xbox live content. Why is this happening is it cause it thinks im to young if so how do i change my age ?Why wont my battlefeild bad co. 2 work online?You have to be a least 13 and also have you linked youre ea account and xbox live?Why wont my battlefeild bad co. 2 work online?Also, you have to have a Gold account to play online