Xfinity internet bill doubled without warning

user_5bwzzk I'm sorry to hear that you were having a hard time reaching someone to help with looking over the account with you for new promotional rates. Our team would love the opportunity to help you find a great plan to meet your current needs. Please send us a DM with your full name and address to Xfinity Support. 

To send a direct message:
Click "Sign In" if necessary
Click the "Direct Message" icon or  https://forums.xfinity.com/direct-messaging
Click the "New message" (pen and paper) icon
The "To:" line prompts you to "Type the name of a person". Instead, type "Xfinity Support" there.
As you are typing a drop-down list appears. Select "Xfinity Support" from that list.
A "Xfinity Support" graphic replaces the "To:" line.
Type your message in the text area near the bottom of the window   
Press Enter to send it