whom to contact about an account that I do not have

Concern moved here to the Billing help section for greater exposure to Comcast corporate employees (The Digital Care Team) for assistance. 

@user_1s9krx Thank you for contacting us about this concern. We can certainly help with this. May I please ask that you send us a direct message with your full name and service address to get started? 

To send a direct message: 

• Make sure you are signed in here in the Xfinity Forum. Click "Sign In" if necessary
• Click the "Direct Message" icon (square chat icon in the upper right corner of your screen next to the bell icon)
• Click the "New message" (pencil and paper) icon
• Type "Xfinity Support" in the "To:" line and select "Xfinity Support" from the drop-down list which appears. The "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