Hello, I've been trying to change the mobile phone number on the account since I started with Xfinity. every time I try and change it gives me an error message Error: SH400.20 "bad account number" please help its been driving my mom crazy that you keep sending her texts
docktadank420, thank you for reaching out here on the forums! I would be happy to help with the phone number, sorry to hear you can't change it online!
Can you please send me a PM with your first and last name to get started? Thank you!
To send me a Private Message, please click my name “ComcastAlly” and click “send a message.”