866-347-3292 is the main support number.
You must call to cancel.
There is a Early Termination Fee that applies to users that cancel service after 30 days and before their 24 commitment contract is complete.
The ETF starts at $400.
There is also a Unreturned Equipment Fee if the Modem, Power Brick and the "Radio" (mounted on the end of the dish arm) is not returned.
A prepaid return kit will be sent to you upon your cancelation date.
Have you done any troubleshooting to identify and correct any issues you may feel you have ?