Shortage of staff results in poor service

We sent our car for a service with a confirmation call from vw saying they would pick me up at 4pm. No one called to say they are running late it was a rainy day I then walked to vw to fetch my vehicle out of urgency. On arrival they had mentioned they recharged my battery when they should of replaced it with a new one. I advised them that my wife is pregnant and uses the vehicle and I cannot have any issues. I was promised and invoice which I revieced and rep**** with some concerns because my start button was still not responding the way it should there is still a rattle due to steering rack , vehicle was not auto valet. No one to date has bothered to respond to my email sent to Jeneane. My car is Half a million and this is the type of service we received? I’ve been a loyal customer to VW for + 7years that is why I also took extra warranties. Please can you look at employing more staff to improve your service given to your loyal clients. A friend mentioned this seems to be the norm at vw umhlanga!!!!