Hello, SuperMike1966. Welcome to the Xfinity Forums!
I'm glad you reached out to us and I would be more than happy to help you access your account again. Please send me a private message with your first and last name so I can assist.
To send a private message, click my name "ComcastTambrey", then click "send a message".
SuperMike1966, as I have not heard back from you in some time, I have closed this thread to further comments. I hope you were able to get help with fixing your username, but if you still need assistance, please feel free to start a new thread.