Jiffy Lube

I came in for a camshaft and knocking sensor and was told it was fixed the mechanic also said he was going to change my oil for me. I ended up taking the car off the lot and the sensors came back on a hour later. In less than 24 hours the car then was not turning on at all I had to call a tow truck to get my vehicle back to the jiffy lube it was supposedly fixed at. The mechanic that was working on my car explained it was the starter and was going to put a new one in for free because of the inconvenience. I left and the next day he said it wasn’t the starter it was something else but because of them not knowing what was going on they were going to give me free break pads and rotors. The next day I went back to check the status of my car they said it was starting just fine they are just going to put the breaks and rotors they offered me on, two hours had passed and when I went to go see my vehicle it was in fact still not starting. They explained to me that it would be the battery now that I had a old battery and they would replace it for free as well. Once the new battery was installed the car was still not starting. The mechanic working on my car proceeded to blame me for why the car wasn’t starting saying that I hadn’t gotten a oil change although he himself said he was going to change my oil the first day I was at this shop, my car even has a new oil filter. My car has been at this shop for a month now with still no progress