Vodacoms Agent Yells At Customers

The agent by the name of Daniel is extremely rude . He yells at customers raises his voice at you and says that no the customer does not understand the steps and that the customer is at fault. I have been calling Vodacom all morning trying to cancel roaming on a number Daniel mentions that it is a free service of no charge . That it cannot be deactivated on the WhatsApp line all I wanted was assistance for deactivating the roaming on a number a small issue for an agent to assist me he in fact did not assist me he told me that we should use Facebook to contact Vodacom and that we are following the incorrect steps after telling him I did follow everything he yells at me to say I am not listening hence he cannot assist me I never got any help on this call and quite frankly I have never ever had a good experience with Vodacom I mean he was answering other calls while on the line with me ? Rushing me off saying that's Vodacom calling. This service is so poor to have an agent raise his voice at a customer , make it your issue and get no assistance?