How to get apps on a Nokia Lumia 710 phone?

okay so i just got a Nokia Lumia 710 phone today and it wont let me get apps. It says i have to do it online but idk how. It says my account indicates that i am a child(i'm 17) and i have to log onto xbox.com with my widows live account. I did that but it still wont work. Has anyone else had this problem?... show more okay so i just got a Nokia Lumia 710 phone today and it wont let me get apps. It says i have to do it online but idk how. It says my account indicates that i am a child(i'm 17) and i have to log onto xbox.com with my widows live account. I did that but it still wont work. Has anyone else had this problem? Please help if you can.
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