Question for those with experience and/or knowledge of GS trade-ins:

I want to trade in Arkham City, Assassin's Creed 1, and Resident Evil 5 (all for PS3). Would this qualify me for the extra $10 in addition to the $28 Arkham trade-in? Or can I only do one or the other? And where would the PUR 10% extra factor in?

Thanks!