MTN not serious about customers

I have a client of mtn for over 25 years now. Since the last 2 years I am having endless issues with disconnecting my phone even though I have been paying. 2 year's ago we have upgraded again but now that it's time for upgrade again, we have been disconnected again even though we confirmed with a consultant that we are happy with current package. Now apparently mtn system is being updated and so they unable to see communication on the system. I am being billed 1 thing but receiving a different package. I have made communication with management at mtn but they also unable to assist. Apparently I should just carry on paying and receive the package they feel like sending me and it will be rectified by mtn in time. This is simply ridiculous as we can't get assistance from numerous people. If I am not getting a resolution from someone and a call as to the issues the below is the alternative.

I really require urgent assistance as the Ombudsman seems to be a better option to get a resolution.