I just got a 16GB mini refurb. I pretty much love it. I received it 6 days ago. I might want to return it and get a 32GB. I realize 16GB really is going to go fast. What's my return window? Am I responsible for return shipping, or does Apple give me a prepaid return label? My return reason is obviously not that something is wrong with it, but simply that I'm not happy with the capacity. Also I think a number of years back there was a restocking fee, but is that true anymore? Thanks.