I was charging at a charge point in blyth and went...

I was charging at a charge point in blyth and went away to do some shopping, when I returned there was a black nissan leaf reg nj68kdx parked next to me. When I looked he had decided to stop my car and charge his, I didn't realise phoenix taxis owned public chargers. Yes the charger I used was the free charger (there was no other cars when I got there)but there is another 2 chargers in that same car park that aren't free which I have used when the free charger isn't available. But I guess phoenix taxis like to charge full price for fares but get the electric free!