I bought a Samsung galaxy prevail at radio shack. I remember paying an extra $35 for a free yearly upgrade. She told me to come in before the year is over and I can get an updated version of my phone. Is this correct? Can I just go in and they just give me a new phone? I don't want to go looking stupid asking for a phone. I dontknow where my reciept is but I remember being told I don't need it.