I WANT MY ACCOUNT CLOSED AND CONVERTED TO PREPAID

Since my first complaint, i had no feedback. I contacted MTN customer care on 8th June emailing a signed letter for my contract to be converted to pre-apid on 28th july. I emailed customer countless times and it seems they do not take the mentality to understand simples query. I was told to use the live chat, which dont work, i email customercare for feedback. All im am saying is i gave notice in June we are now in August and my request is not processed. I asked for a managers details. MTN I DO NOT WANT TO HEAR APOLOGIZES. I WANT TO HEAR THAT THIS IS SORTED. Should my account be debited in AUGUST I WILL TAKE LEGAL ACTION. You are prolonging the contract cancellation, and i am paying the contract month to month, due to the *********** staff you have. I WANT A MANAGER TO CALL ME TODAY AND RESOLVE THIS.