I bought a HTC One phone from Ting thinking that I could easily just activate it on Sprint. Unfortunately I was mistaken. I've tried to call Sprint a few times and I always get the same answer. "No, we don't have the ESN in the system, so we can't activate it." Anyone have an idea of how to do this? I've read online that if you say "wholesale phone" that would work, but that didn't seem to work either. Please help!