Renault service incompetency

Took Renault Sandero for 45 000km service. Nothing was wrong with car when I took it in. One day later a noise started under the car, next day it was bad. On my way to the garage I lost control of the car, steering wheel went wild, terrible noise, drove into kerb, with lots of cars around me. Was able to get to petrol station close by. The attendant saw that the left front wheel was held by one nut instead of 4, and by this time it was skew, and the bodywork was damaged. Manager of Renault Northcliff sent mechanic out with extra nuts and he also had to tighten all the other nuts on the wheels. I drove to Northcliff and made many demands which I sincerely hope for their sakes, they adhere to. We also realised they didn't stamp the service book, they didn't wash the outside of the car (grease hand marks all over). They didn't put the parts they replaced in the boot. I'm not sure they actually serviced the car. This was the last service under the maintenance plan. I demanded the following : They must redo this service. Replace all the damaged parts and body parts caused by this incompetence. I will get all the next services for free. This could have caused a fatal accident. Scary