So I had great thing happen to me the other day. So I'm currently almost paid off on my 6+ via T-Mobile's jump program and I decided that I wanted to see of they would let me unlock it, because once I leave my area for vacation or to visit family my service drops of completely. Well, the lady I spoke to was awesome and she submitted my request for unlock and advised me that because the phone wasn't paid off just yet the since I just purchased it there were no guarantees. I just received my email that my iPhone was approved for unlock and now is unlocked. I popped in a straight talk ATT nano Sim and now I have service when I go out of town. Very happy right now thank you Apple and T-Mobile.