Bad service

On the Black Friday I booked my car for service and I went to drop it off at the shop along side with many who were there for the Black Friday discount and I left my car there after registering at the desk after they came and check everything on the car before handing them the keys and what transpired is that as the hours went by I kept checking my car on the Tracker app after 3hrs and it was still parked where I had left it so I went there and asked when my car will be serviced and they said they will not close until all the cars were serviced. So I left and when it was almost 6pm I kept checking my car on the tracker app and it had not moved and at 6:30pm finally the car moved to go inside the workshop and by 7:30 I went to the workshop and found the car had been parked outside seems like they were done servicing it and I paid but as the days I could feel that this car had not been serviced they just increased the kilometres on the service app like it had been serviced because the way it sounded before i took it for service it still sounded that way and as I suspect that my car vehicle was not serviced they made like it was but as a owner I know how it feels and doesn’t when it’s serviced so I was ****med by the Rustenburg workshop people to say my car was serviced and it doesn’t sit well with me cause I have to travel long distance this December and with a car that wasn’t serviced i can’t travel far now