Car came back with a lot of faults after a 15000km service

I took my car in for service on the 27th Jan 2023 and when it came back it had starnge noises at the back. I took it back so that they can get it checked and they found that it was the heat shield that goes over the exhaust and I was told that I probably bumped it somewhere. Today I noticed that it has an oil leak somewhere on the oil sump and the engine oil filter was loose. I am going back there tomorrow and I just wonder what sh*tty story they will be telling me this time around because they don't want to take responsibility for anything. I would not advice anyone to take their vehicle there for service.