Mtn poor service

Contact centre is hopeless, spoke to anele very unfriendly and not very professional to the point it felt like my call was not important. I called to change the debit order date but was told that I had already changed the date which is untrue, I had not called mtn I was the one that was called by mtn to upgrade my contract in May or June which is way under 30 days. I asked to speak to a team leader and was told no I cannot, no help at all and really disappointed with the service. I have been with mtn since 2019 and it's almost always a painful experience with them. Please email me communication as I am not going to the store as it does inconvenience me from work. And why should I when I'm not the one chasing after yourl to make a sale, everytime communication was done it was via a phone call. I expect someone to email me soon.