This is a major concern in main stream as well:
http://subscriptionsiteinsider.com/b...ers-watch-out/
"Section 4 regulates your offer page itself as well as the way you accept cancels. We’ve examined more than 500 subscription and membership sites… and only ~10% came close to looking like they adhered to what Section 4 seems to require. Basically, you probably are going to have to change your offer pages and/or cancellation procedures if you don’t want to get into trouble."