I was told today by an SA and Manager that there is no time limit. Although this was in regards to a gift I purchased my sister. She is gone for a year and I wanted to make sure if she did not like it she could exchange it for something that she did like.
I just returned something that was from 2008 today....lol. Hated to part with it, but I havent used it! It was a SS Studded Gold wristlet I got for $20. Cute, but never used it, so I put it towards a wallet!