Does anyone know if I have to trade it in my phone the when I pick up my new phone or will they give me a couple of days to bring it back in? I picked in-store trade in thinking that would be faster and easier. Someone told me that they will give me 14 days to bring it back in. I was wondering if anyone had an issues with doing this? I wanted to bring the new phone home setup everything up and take the old phone back the following day.