Pathetic service and items stolen

I send my bakkie in after i did my injectors on the 25/10/2019 , i send it in the 8th of January 2020 , came back with excuses that it was the injectors again and that they would not fix it under warranty , and said there was water and other stuff found in it, then went to fetch it and they actually stole 2 knives out of my cubby worth R1100 and i paid them R2400 for doing nothing on the bakkie, took it to another place they said that there was no water or other stuff found in the diesel, clearly they have pathetic service, and criminals working for them .