Deactivated account reactivation at a new address(apartment)

So I lived at a previous address where the number in the street was actually the apartment number. I deactivated the account when I moved out as I moved to a new place where my roommate was already an Xfinity customer. Now our lease is ending in 2 weeks so I am trying to reactivate my own account again. Upon normal sign in, I get the error message to contact the account number to make changes to this account. Now I have tried purchasing a plan without being signed in and/or in a private tab and it almost works, but then at the final confirmation/review page the "service address" is the apartment complex and my unit number is not shown in that service address. Talking with the Xfinity Advisor all I was told was to speak to a sales agent, so that person did not provide the help I was looking for. Any suggestions or CSR that could assist me.