CANCELLATION OF CONTRACT

I sent a cancellation of contract to MTN customer care on 17/04/2015 at 08h29am got a read receipt no reply sent another mail 20/04/2015 1h15 got a read receipt no reply, called call centre 18/04/2015 spoke to Lita who then said she would escalate the cancellation confirmed with her that the last debit order would be 01/05/2015, ref number *** called again 20/05/2015 spoke to Mienkie to confirm cancellation and last debit order would be 01/05/2015m she confirmed and that I could use same reference number I now notice that there is data on the phone for this month call again speak to Majaki he says he will escalate cancellation as it has not been done I ask to speak to a Supervisor he puts the phone down I am now waiting again to ger through does not matter that it takes a minimum of 30 minutes to get through and also that the customer care e mail address is a total joke as they do absolutley stuff all about anything, I have now told them they can go to hell if they think they are going to debit my account the end of this month. PEOPLE STAY AWAY FROM MTN THEY ARE A JOKE USE VODACOM THEY ARE ON THE BALL