MY MCU1 on a 2017 model x had a catastrophic failure and went dark. The Tesla shop wanted to get me on the road asap and offered me a refurbished MCU1, with a written promise in my Tesla notes plus an e-mail, to credit me the MCU1 cost towards a MCU2 cost, which left me with about 275 Dollars to pay out of pocket when they get a MCU2 in, since the upgrade was 1500 Dollars. Now I’m scheduled for an MCU2 upgrade at a completely different facility and being charged 1750 plus labor! What happened to the written MCU2 upgrade cost promise for 1500 and a credit for 1225? Does that make sense to anyone else?