General Motors review: Transmission control module 2013 duramax part #19431596

On November 4th 2023 my 2013 Chevy Silverado 2500 diesel started having transmission problems. All the lights the check engine lights the ABS lights all the lights on the dash came on. So I called prior Chevy dealership and told them situation. They informed me to bring it in as soon as possible. I take my truck straight there. The technician determine my issue was the TCM which stands for transmission control module. So they got on the computer and seen that they had can get one and they informed me it would be $800 for the part. $500 to reprogram it once it's installed and then whatever the labor was going to be. I told them go ahead and do it do what it takes to get her done. 7 Days later November 10th 2023 I called prior Chevy dealership to check on my truck. They informed me that they could not get the part and the part they were going to get they sold to somebody else. He then told me he was unable to purchase a part for my truck. I asked him if I could find one will you guys install it and program it he said yes but they will not warranty it said okay whatever went home. After a 3 days of looking for this part I I determine that there was a big issue Allison's Transmission told me they were 14,000 TCMS with that part number on backorder everyone with that part in their vehicle is looking for one I have been out of work since the November . That truck is my only . I pull a trailer to work everyday so I can't just borrow a car or a random vehicle and I'm not rich today is November 20th 2023 and I have no solution no plans no way to figure out how to get my truck fixed.