I am a Verizon customer who was eligible for upgrade a month ago. So, about 3 weeks ago I upgraded from the iPhone 5 to the Galaxy Note 3. I've now decided that Android isn't for me. So, what is my least expensive option to switch back to the iPhone, specifically the 5s, considering I'm outside of my return/exchange period? I know it's going to cost me, but if I consider all options (early termination, adding additional line, etc.), what's the least expensive way to do this? Thanks in advance.