Can't disconnect charger

'Tried to unplug my charger today, a Panasonic NN2R3H bought as a replacement for my original charger that malfunctioned:

SPECIAL! High-power upgraded Panasonic EVSE (open box) [RN2R3H] - $649.00 : EVSE Upgrade, Low-Cost EV Charging Solutions

The charger is locked onto the receptacle and I can't remove it and at this point I'm concerned about forcing and breaking something. The thumb button depresses somewhat but feels as if it isn't properly releasing. From gently moving the charger around a bit it feels as if it is locked onto something near the top of the receptacle rather than the bottom or sides.

Any ideas/suggestions on how to remove this thing?

Thanks for your help,

 

Well...good news is that I got the charger removed. Like the victim of the other thread, I had to remove the 4 10mm bolts holding the charger receptacle plate in place to be able to get a screwdriver in there to free the plastic 'catch' on the charger from the metal 'plate'/holder on the receptacle.

Bad news is that unlike the other victim, the problem isn't my metal 'plate' having worked it's way out of position, but something wrong with the thumb/latch mechanism of my charger. Basically the depressing the thumb button doesn't 'raise' the plastic 'catch' enough to clear the metal plate/holder. Even worse, I thought I could solve that problem by carefully wedging a small piece of plastic in under the 'catch' arm in the charger body such that the 'catch' wouldn't 'catch' at all...I could live with that. The charger inserted and removed easily as you'd imagine, but no orange charging light near the receptacle, and no 'charging' indicator light on the charger block...it is simply showing 'ready' as if nothing has been plugged in. So I'm guessing there's something inside the charger handle as a safety feature or ? that is signaling the control unit to not allow a charge to begin? It's not exactly clear how one takes apart the charger handle unit to investigate either...

 

Unfortunately this was a replacement for the OEM charger which 'burned out' a few months after getting the EVSE upgrade...which may or may not have anything to do with it.

'Not a happy camper about this. Love the PiP, but in my experience these chargers aren't ready for prime time--at least for folks with driving habits and in an environment like mine...