Soweto volkswagen maponya is a NO NO for buying or servicing your vecle

i own 2015 polo 1.2 tsi , this is my 5th polo i owned , i took the car to Soweto VW for service and my car was still under warranty and service plan. 1. My car takes time to start- They advised it was a water pump, which warranty did cover and replaced. Problem still exist and reported to Shaun(Service Manager) and it was booked again they reset the software, Still the problem still exists, for the 3rd time they advised it was a battery which i did replace but the problems still exist. 2. My car sound system changes channels by its self- Shawn advised i need to replace the tape which cost 17K and my warranty cover only 3k. Please note the tape is not damaged why must i replace the tape? Shaun cant answer. I took the Car to someone that specialized with Radio and he advised tat vw must reinstall the tape (Radio) software to fix the error, i then advised Shawn and he hasn't come back to me and is more than 6 months now.. The manager Shaun Munger. He is the most unhelpful manager that I have ever come across. He knows absolutely nothing. All he is good at it is, walking around his premises like a boss and barking orders at people. Shaun does respect people and take them for granted. i will never own a vw car ever again if we get such service from township, we try to support them but such service keeps on growing.