Remember having to contact customer support to canceling prime after searching for how to do it for at least half an hour (googling and all), no clue if there actually was a real way. Hope FTC wins but I would guess it will be a small fee that can be seen as an investment by amazon.
FTC sues Amazon for tricking customers into signing up for Prime (www.theverge.com)
The agency also claims Amazon made it difficult to unsubscribe.