I dunno. I'm pretty sure this isn't UltraViolet. Is it maybe a code for Vudu? Because this film is indeed available on Vudu but not through UltraViolet (which means that unlike most Vudu films which are also Ultraviolet this can only be viewed on Vudu). Do you have a picture of the slip that confirms this is UltraViolet?
Friendly bit of advice: for your own protection, you should probably be careful about this. The winner of this auction could take the code, redeem it on Vudu or iTunes or wherever, and then request a refund from Listia because it isn't UltraViolet. You would then be out of both the code and the Listia points.