I want to return my iphone 6+, i ordered it from apple.com using one of my eligible att line. It is not NEXT, i signed a 2-year contract. Is there any fees associated with my return? I assume I will get my upgrade eligibility as well? Eventually I want to take my business to t mobile, what would you suggest at this point? Should i just use tmobile's Contract Freedom program? I am puzzled here! Thanks!