Remember those contracts you signed (or "signed" by "being told about a link to it") that said the other party can change the terms whenever they want and all they have to do is put a notice on their web site?
(Oh, you don't, because you don't sign those contracts? It must be nice living without a cell phone or any software or web sites. Please send me an application packet for your monastery.)
Yeah, those terms are invalid. So if they've ever changed the contract terms on you, you may be able to cancel just because.
Ninth Circuit 4 life, yo.