I have purchased two additional batteries from Dronefly for the Vision and have not had any problems with the batteries or Dronefly. Good service and fast shipping. I also had to get support and replacement of a defective item in my Vision and Dronefly responded fast and shipped the replacement parts immediately and without questioning.
I had a bad P2 Battery that I ordered. It wouldn't charge, and B&H wouldn't help me out at all. I called Dronefly and explained, and they couldn't send me a new one because I didn't buy from them, but they gave me 15% off! The guys there were real nice, too! You should try to call them again, because from what I've read, most people get pretty good service. Good luck!!!