Well, I'm on Verizon's AC plan and wanted to switch my ESN to the samsung a530. I called cc and they told me thier computers won't take the a530 ESN because of my pricing plan. Well, the funny thing was I activated the a530 a few weeks ago and I'm currently on the VX6000. I told them this, but they still told me the computers wouldn't take it because of my plan. It required a tri-mode phone. I went through 5 cc reps who told me the same thing UNTIL finally i came upon someone who just entered the ESN and that was it. No problem. Anyone have ideas as to why the 5 previous cc reps couldn't do it?