Poor service/ change to prepaid

I'm terribly disgusted at the poor service I've been receiving from MTN to get my contract moved to prepaid. I've been sent from pillar to post and to date no success. Since the 28 November 2023 to date, they have not done so and continue to debit my account. Ive requested management details and they refused to provide with the same. I'm utterly shocked at their incompetence .

I'm a pensioner and don't have the time to be running around at their convenience. I request immediate feedback or I will have to resort to other methods.

My contact number:***