Iv contacted xbox live support, the advisor has advised me to post a question on this forum. Basically he has explained to me that my parents windows live account is the primary account on my xbox live profile but doesnt have a linked a gamertag, which he explained to be a ' MICROSOFT PROBLEM '. No one uses this email address and hasnt been used for a long time which has resulted in the loss of information needed for me to accept the terms of service.