Despicable customer service from Greg

I called in Greg at the McCarthy VW Umhlanga branch with regards to an issue I had with an extra that I'm still paying for on my car, firstly as I was still trying to query my issue Greg was the least patient with me and rushed to give me a readily available. I then moved on to query about my file and all other warranties that came with the purchase of my car, again Greg was impatient and rude to say the least and rushed again to give me half baked answers. I had to tell him to please give me answers as per what is on my purchase file and he can't speak on it as it would take him 2-3 days to pull up a file from 2012. He carried on to forcefully give me information based only on his knowledge rushing to just hang up the phone. I literally had to beg him to please pull up my file and give me facts. When I expressed my displeasure in his responses, he said to me it's because I'm expecting him to say that they'd pay for the query that I first inquired on. I am beyond appalled and feel extremely disrespected and undermined. I cannot believe that a person of his role can be so ill-mannered to their customers, it's despicable and doesn't paint a good image for the brand.