I purchased a gift from Red Envelope. Soon thereafter there was a mysterious $1.95 charge on my credit card, followed by monthly charges of $14.95 to the same cryptic entity - "RED E RWD".
When I called the phone number associated with it, I found out that this was a concierge service called "Red Envelope Rewards". They explained that when you make a purchase on Red Envelope, they ask you if you want to try their rewards program for free. And if you don't cancel, they just start charging you.
I don't ever try these things, and I don't remember specifically enrolling. Either way it's a dubious business practice and makes me never again want to do business with Red Envelope.