How to cancel NOW TV?

How to cancel NOW TV?  I have chatted with many Xfinity representatives, nobody knows how to do it.

Hello user_4bxhhf 👋 I see we've already began working with you in our private messages regarding your NOW TV cancellation, and are happy to continue working with you if you're able to respond to our most recent message. Otherwise, you can always find additional support for your NOW services directly at Xfinity.com/nowtv.

Hello @Larry1229 we would be happy to help you with whatever account changes you would like to make. Please send us a direct message with your full name and the service address to get started. 

To send a "Direct Message" to Xfinity Support: 
Click "Sign In" if necessary 
Click the "Direct Messaging" icon or  https://forums.xfinity.com/direct-messaging 
Click the "New message" (pencil 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 
- An "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.