Owner of Pacman Packaging - Brian - discpicable attitude over phone call

I emailed Pacman Packaging based in Kya Sands, Johannesburg to request for a quote of packaging. Two days later, an employee phoned me to find out which company I'm from. I informed her (Vusi) that I do not currently have my own business and was in the process of putting together a start up, hence the quote. I asked her if there would be a minimum amount of boxes that would need to be ordered as industry standard would only manufacture with a minimum as it is not a straight forward process (die cut would be involved in order to manufacture boxes of the required dimensions. It is also quite expensive to do so). I was well aware of this going into the process and had received responses from other companies I contacted informing me of the minimum amounts as well as the prices of the boxes. In response to my question to Vusi of what the minimum quantity was she said she would put me through to Brian who would be able to answer that question. From the very get go, Brian addressed me with an aggressive tone. He told me that no company would be able to produce what I required and if they did, something would be wrong with the end product. I let him know that I had received quotes back. He then raised his voice and assumed I did not understand the process and got into explaining it to me. At this point, being spoken to so rudely and not willing to be spoken to in that way any longer I cut him off and explained that Vusi had called me- I did not call her- she also put me through to him and I had no point asked to speak to Brian (who is the owner of the company). I asked for him to not speak in an aggressive tone at which point he put the phone down on me. As an owner of a professional, well established company I cannot fathom how communicating to somebody in that manner is EVER acceptable. I deal one on one with clients and people on a daily basis but have never up until this point been spoken to in such a despicable manner. It is no way to run an establishment, no way to speak to any person WHATSOEVER. Brian you should be ashamed. There is no excuse for your behavior towards me. Your attititude towards me from the very moment you started speaking to me was in a rude and demeaning tone. All that was needed to be said from the very beginning by both Brian and Vusi was that they would not be able to assist me. A demeaning behavior was no necessary. It was a basic quote. Not a sword thrown at you that you needed to retaliate with. I spoke to Vusi after this phone call (I called back) who was apologetic and sincere which I was appreciative of, especially for her calmness and patience during the situation. I would never ever recommend this company to ANYONE as a result of what happened.