Damage on vehicle after service

I took my vehicle to Westvaal secunda around the 7th of July because the alarm kept going off eversince it went for a service at the dealership. Upon collection of the vehicle i saw that the bonnet was dented. I reported it and they said they will fix it and give me a courtecy vehicle a week later i phoned them and then suddenly they had a vehicle for me. They took the vehicle to Sectri Auto Body for the repairs three weeks later they told me the vehicle is ready for collection. I took the vehicle to another panelbeater for inspection where i was told that the bonnet was polished through and the dents were still visable. I then took the vehicle back yo Westvaal. My car went back to Sectri again and yet again i waited another 4 weeks without hearing anything from Westvaal. This morning when they delivered my car... THE SAME DENTS ARE STILL THERE. I phoned and spoke to the service manager which then said aaaaaggggg we must just give him a quote so that he can pay for it. I really think their service is up to ...!!!!!!!!!