I've used Amazon trade-in for games in the past and had no trouble, but apparently a bunch of stuff is going missing atm: http://www.amazon.co.uk/forum/video%...x2QAVRJUK83I9B

I've got a copy of Hitman "lost" at the moment. Hopefully they'll sort it out but I thought I should warn people to steer clear of using Amazon for trades atm as there's clearly something dodgy going on.