I have a mophie - it was bought for me as a gift - I loved it up until last week - the iphone connector has a wire short in it - where if I move it just right it will work. It's always been in my office so I don't have to charge my phone on a short cord - I can keep the phone right next to me while I work - that's it... no over use, or aggressive usage with the thing - just shorted. What can I do?