user_ny840f Thank you so much for using our Forums and we are sorry to hear about the issues you are having trying to change your plan. You came to the right place for help and to get started can you send us a DM with your name and address? Here's the detailed steps to direct message us: 
• Click "Sign In" if necessary 
• Click the "Direct Message" icon (upper right corner of this page) 
• Click the "New message" (pencil and paper) icon 
• Type "Xfinity Support" in the to line and select "Xfinity Support" from the drop-down list 
• Type your message in the text area near the bottom of the window 
• Press Enter to send your message