Upgrade of contract which is not needed.

I was happily on a month to month contract. On Thursday 01/06/2023 some consultant called me to offer me premiums on a contract, and i specifically stated that i do not want to be tied into another contract.

The offer was processed as an upgrade, regardless of what i had expressed. Now today, 07/06/2023, I called the contact centre to please reverse this change, as I was made aware of the 10 day cooling period.

Now I am being told an additional 'early upgrade' was processed, which I once again did not ask for. The consultant who processed this early upgrade didn't even bother to return my call as the phone cut during the process.

Please can this be rectified. I do not want to be tied down to MTN for another 36 months. I am happy to be put back to a month to month contract, which is what I initially had asked for.