Renault East Rand - Poor service

We booked our vehicle in for its services. The air filter was not available on the day of the service, and the vehicle had to stay and extra day. Unfortunately, I did not get any feedback the next day and eventually after I phoned to find out what is happening but could not get through to the service department, I had no choice but to go in to find out what is happening with my vehicle. On top of that when I was given a call about the additional items that is outside of the service, I was not informed that the thermostat housing is leaking and that the number plate light is not working. The service agent used the words that she assumed and felt that because we declined to have the brakes and socks repaired by them, she did not think we would have any of the other items fixed. The service received from the service department at Renault East Rand was appalling. Feedback could have avoided the situations and now I am expected to bring my vehicle in again. I am also just assuming that due to the fact that the thermostat housing was not in stock this contributed to us not getting the updates regarding the additional items that needed repairs.