I've never used the site because it doesn't make sense, so forgive me for all the questions. You have your coins on there, and then send them to people who are willing to send you an amount of stuff worth more than the bitcoins are worth off of an amazon wishlist? Can't you just keep the coins yourself until there is a person willing to make a purchase for you?
It seemed to me like people buying coins would be the people with coins on the site, it did not occur to me that people looking to sell coins would leave them there.
how it works is i want something on amazon i make a wishlist for it.
then i put the wishlist on that site and put up an offer based on how much i want to spend basically. i can choose up to 50% off the retail price altho you probably wont ever actually complete that order.
then you fill the order with how many bitcoins you wanted to spend. i usually chose 30% off...
so then someone wants to buy your order they accept the offer and buy your items. then they give the site the tracking info and you wait till it arrives.
then you push the button on the site that says you received items and the system sends them your bitcoins.
it seemed all automated..
your items come with a full warranty, and you get a card in the box with a buy order number that amazon accepts so you can even return them.. altho probably not for cash back.. maybe credit?
ive only had to warranty out one item i got so far and it went smoothly.. i contacted amazon they contacted the supplier and he sent me out a new one.. even got to keep the broken one.