Bad customer service I am very unhappy

I made a call today to mtn customer service at 15:03pm spoke to a lady by the name of Buhle Matoti I needed explaination about the difference between BIS and BISBES she was so rude to me not acknowledging that I am a customer and all I needed was help.I could hear her smug over the phone she was so rude and she didn't even care.Instead of assisting me she made sure that she made me feel small because I didnt the know the product and that I did not pronounce it correctly,she was even yelling talking over me.At some point in the conversation I am trying to tell that ok don't explain about BIS because she's telling me what I know so I don't want to waste time,she must just tell me about the BISBES she kept on insisting so rudely.I am not happy with the customer service I received today and a lot of people are complaining this means mtn is letting their \service champion"get away with speaking to customers in a disrespectful disghusting manner she just messed up my day.When I need assistance as an mtn customer who am I suppose to call?Mtn really needs to train their agents and deal with them this can make a person change networks.An agent is a representative of a company.Dissapointed!"""