Appalling customer service!!!

I have a Hyundai Accent 1.4 that was due for service. My driver took the car in on the 23rd of October 2017. Upon returning of my driver he found a crack on the windscreen which was not there before. He asked the service advisor Riaan Bornman about this. Riaan then became very rude and hostile towards my driver telling him that that's not his problem. My driver then left and alerted me. I myself went with my driver to pick the vehicle up. I received the same rudeness from him, he was actually shouting at me. I demanded to see a vehicle checklist, which should be standard when your vehicle goes in for service. He continued shouting at me telling me that there wasn't a checklist. He then arrogantly told me that should I have a problem I can take it up with customer care. To say I'm disappointed in the way Riaan Bornman treated myself and my driver is an understatement!!! I won't ever be going back to Hyundai the Glen!!!