So I've preordered an iPhone 6, it's already available at the Apple store. I just haven't picked it up since I've been waiting for the lines to die down. After looking at my bill and doing some math, I realized that it makes more sense fiscally if I purchase the iPhone outright for $750. I purchased the 6 with a renewed 2 year contract for $300. When I go to pick it up, can I have them change it to an outright purchase for $750? Or am I stuck with the 2 year contract now? Thanks so much for help!