I can't get over with battery life, so I will retun it to RS where I got it from. Few questions before I do that. 1. I pre-ordered it, so $50 gift card for cash and rest on my credit card. How would they refund me? 2. Do I need to call sprint to cancel service first before I go to RS? If so, what about my number? Can I just port my number to other carrier to cancel? 3. I already got my first bill from sprint, but since I am canceling within 30 days, do I just ignore that bill?