MTN customer service agents need better training

MTN you have horrible customer service agents! I have just spent 45 mins of my time being transferred to 7 different agents and their respective departments for one simple request. I currently have a month to month home internet option, 100gb for R269pm. I would like to change this to the 300gb for R429pm option as the current plan does not meet my data needs. This is a simple request and MTN already has my details as an existing customer. So why was I transferred to several agents who all claim that their departments do not work within the scope of my request? It seems as if MTN agents do not know the structures of the same business and services that they offer to their clients. What was worse was the lack of patience and understanding these agents had for me when I had to explain my request for the 7th time. I was eventually helped by Portia, who took the time to listen to my request and frustrations and actually provided a solution. However, I still need to go in store for my request to be processed. I just hope the instore agents have better customer service skills.