I'll call the apple store tomorrow and see how far back they keep cctv records or tapes or whatever they use....Thanks for the info!
Lets see.. your "girlfriend" who saved all her tips went to the Apple store and paid cash for this card and YOU are going to contact the Apple store. Why not have HER go in there with her receipt and proof she purchased it instead of YOU doing all this.
I believe.. Well I don't wish to be banned either. So I'll just advice you to tell your "girlfriend" to bring proof to the store. Otherwise it belongs to the OP.