General Motors review: Service programing a fscm

this event took place on november 3rd 2023, i emailed the dealership that afternoon with my complaint and they never responded. this is what i sent to them.

I had an appointment at 8:30 this morning November 3rd 2023 to have my fuel pump control module programmed, obviously the car doesn't run so I brought it in on a trailer. After waiting an hour the guy comes out and says he can't do it because it won't communicate, I told him that's the code I got and the service department said because it needs to be reprogrammed...(that's why I brought it in) i said I have the original fuel pump control module in the car and that one communicated but had a error code could you try that one. The service guy (Gary Reynolds)was very rude and said he won't do it Because it is on a trailer. He was rude even with the counter guy that taking care of me and we had to walk away. He said his computer won't communicate, however he was able to print out 20 codes and says this is the problem and he's not working on it anymore. It obviously communicated if he can retrieve codes. He outright didn't want to do the job because it was on a trailer. Then I get charged 205.18 for a guy that refuses to work and I am no further ahead that before I took it in. It's utterly ridiculous that I'm paying for a guys refusal to work.

after i sent that email i went out to take my car off the trailer. I reconnected the wire i had temporaraly had run to jump the fuel pump to load it on the trailer, (i disconnected it after i loaded it so there was no issued programming it), anyway the car wouldnt start, upon figuring out why i found the service guy pulled the fuse for the fscm (the hot source i used to jump the fuel pump) and also the main power to the fpcm that needed to be programed, no wonder it wont communicate and Mr Reynolds kept saying its a wiring/power issue, and i wont do it on a trailer, I offered to take it off the trailer when i got there and they said no dont bother.