Yeah, the wording is a little tricky. I went to mydish.com and pulled up the plan details and here is exactly what it says.
Can this Plan be cancelled? You may cancel this Plan at any time by calling [1-800-333-DISH (3474)].
New DISH Subscribers: If You cancel this Plan within the first [180] days after activation of Your DISH Network account, You will not be charged the Purchase Price and any applicable new subscriber credits for the Plan will end. If You cancel after [180] days of activation of Your DISH Network account, the Purchase Price paid by You is fully earned and You will not receive a refund or credit.
Existing DISH Subscribers: If You cancel this Plan within [180] days of purchase of this Plan, the Purchase Price paid by You is fully earned, You will not receive a refund or credit, and You will be charged a cancellation fee of [$30.00], where allowed by law. If You cancel this Plan after [180] days of purchase of this Plan, the Purchase Price paid by You is fully earned, You will not receive a refund or credit, and You will not be charged a cancellation fee.