Call centre agent

At approx 10h30 this morning I was phoned on my cellphone by a vodacom call centre that wanted to tell me more about a packet deal for wifi and router, something to the value of R179 per month. The consultant was a bit difficult to understand but once I heard he wanted to know if I am interested in this deal, I quickly stopped him and explained that I won't be interested. He got very pushy and told me I must listen to him and the more I explained that I am unfortunately not interested the more he told me that I don't need to take it I must listen to him. His tone of voice started to go up and he mumbled something that I just couldn't hear properly and when I told him that I am at work and really cannot have this conversation... he said to me quite clearly..... "well them you might as well go to hell"... I couldn't believe what i just heard and when I asked him... excuse me, but what did you say?? He started chuckeling at me and said again... well you might as well go to hell... Is this the standard that Vodacom is training their staff now??? I am shocked beyond belief, it might sound trivial to you but to me that is the lowest form of wit and YOU PHONED ME!!! So sorry Vodacom...you need to clearly investigate this but as there are millions of staff working in call centres I guess this is once again a dead end for the customer on the received end of very very bad service...