So, I helped my mother-in-law pick out her iPhone, a 6 Plus, after she'd originally thought she'd wanted a 6. This was on the 20th. Well, after a couple weeks with it, she likes the large screen while she's around the house, but doesn't like using generally while out or at work. In short, she finally admitted to me she kinda wished she'd just gotten a 6. So, I feel responsible for nudging her to something she's not ultimately happy with. She got it subsidized via AT&T and yes, it's past the 15 day return window. What options does she have?