can't link new account
I recently moved to a new house and ordered service for my new address. When I log in to Xfinity My Account, I see the account number for an old address I lived at 2 years ago. I have tried to link to my new account, providing my phone number and address, and I get an error message. I've also tried to do the "add user" workaround, and I get the message "you can not add users to this account". I've read the troubleshooting articles and the linked account articles and didn't find anything that worked.
I do have the new account number, and I have received a paper bill and was able to pay it using the "pay without signing in" option. That is not an acceptable long term solution, though.