How do I cancel HBO GO?

HBO GO is a free streaming service that's included with your paid HBO subscription through a TV provider. To cancel your HBO subscription, you need to contact your TV provider 

Note: Your TV provider appears in the upper-right corner on a computer or TV, and in Settings when you’re on your mobile device. 

How do I cancel my free trial before it ends?

HBO GO doesn’t offer free trials—you might have HBO NOW instead of HBO GO. For more information, go to How do I cancel my HBO NOW subscription?