After no successful dispute with NRG for my previous claim (NRG record showed I charged at a fast DC charger for 70min, which I didn't), now I got another bill saying I charged at a level 2 charger for 138 min on May 7th. Luckily I checked in on "Plug Share" that day saying not able to charge. I did scan my card in front of the machine and no juice was going to the car so I unplug it and left. On May 8th, another user said the charger was still not operational. I doubt all the evidence will convince NRG their mistake on my bill.. From now on I will document all chargings and send a complaint to BBB. If there were other users experienced like I did, I would like to gather all of you and starting legal action against this untruthful company.