No Feedback, Bad Service,DP still not following up

Vehicle was booked in on Tuesday 22 August 2017. Radio was giving problems from day 1. Car was delivered by Action Ford Krugersdorp as well. Radio switches off, no way for me to switch it back on. Car was @ dealer 4 times before 15k service. After 20k service, Riaan promised that radio would be replaced if the same problem occurred. on 40 k service, i requested the radio to be replaced. Clive(Service assistant) booked in vehicle, @ 13h00 he phoned telling me that my vehicle is ready for pickup, upon asking about the radio, he said that radio is not replaced but another software upgrade will fix it. i told him im not taking the car back until they replace my radio. from 16h00 i phoned 3 times to get an update, no one could provide me with an update, at 17h45 i phoned, and everyone left for home. Not letting me know that my car will stay at the branch. Lights was not properly fixed as asked, still a problem. Its been 8 days, and the service manager/Dealer Principal has not contacted me yet. i have asked 3 different people for the Dealer Princicpal to contact me, still have not received a phone call. BAD SERVICE all over. This will also be taken to FORD SA.