Poor Disappointing and Unbearable Customer Service from MTN and their misinformed customer service consultants

Last year I took a contract with MTN, reed the contract and it was explained also by the sales consultant who was assisting me, it was a very decent and convenient contract, which was very accomodative. Then last month my initial amount was increased without my knowledge which really inconvenienced me. I called the MTN customer service to understand the increase in amount of my monthly installment, to my surprise a consultant told me that this increase was due to MTN making sure that the network is up and running during load-shedding, I asked if prepaid customer experienced the same thing and she starters and ran out of answers. I went as far as asking for escalation of the matter and getting correct and appropriate answers yet nothing was done. Today to my surprise my monthly installment went off, while arrangements were made for 3rd day of the month every month. I've experienced nothing but poor service on MTN, there's nothing worst like MTN services, even that medium-sized corner store provides way better service than MTN. I called several times about my bundles and what has been happening since last year August but I've never got assisted with that till today, though I was told that it was escalated to the technical team. I am super disappointed in MTN and their poor services as well as having misinformed service consultants that offer little to no knowledge on crucial and critical questions. I rate MTN zero star (not even one), the service they've rendered to me isn't the service I expected from a big entity that's nation wide.