Bad Car Servicing

I took my car for servicing at Capetown City Volkswagen on the 26 February 2015.<br> After fetching my car later on that day, on my way home the ABS and Hand Brake warning lights came on.<br> The next day I took the car back to the service centre, and they came back and told me it might be an ABS cable that has been eaten by rats, I mean my car was working fine until they touched it, just because I know nothing about cars, the pint out some cable I don't know and they estimate about R2500 to fix it. What I know is my car never had and ABS problem when it went there and now I am stuck with these lights that I must fix for my self.<br> They called me after for service rating and the lady said the service manager would call me, and till today he is still calling. <br> I have dealt with VW before in Johannesburg and I have never experienced such a bad service. When I asked them why they didn't pick up the fault during service they said they don't look at such things. I still say my car was okay before they touched it , why must the lights come on after driving for about 10KM? <br> I lost trust in VW now, worse that even the service manager never even called to find out why I rated them bad.