Secondary Account needs to be upgraded to separate Primary Account

My parents created this email address for me when I was a kid. Now I have moved into an apartment and need to have wifi installed, but I cannot do this as a secondary account. My parents cannot upgrade my account to primary status, because they have since switched to Fios and Comcast removed almost all their ability to edit account details. I cannot create a new primary account because both my phone number and social security number are linked to my current secondary account. I do not want to delete this account to create a new one because this is my primary email address and I have signed up for many services with it, and do not want to change the email associated with all of them. If I could have my email address removed from my parent's accounts completely, while retaining my current email address, all my problems would be solved.