It is impossible to cancel Vodacom contracts and services

I've just been billed over R700 again as a debit order on my account by Vodacom. This after I've been trying to cancel my 5Gb Data contract and the 500mb additional data on my phone contract number for 2 months now.

I was promised over the phone that next month I will only be charged for my phone contract and they assured me that the 500mb add on data of about R100 has been cancelled and also that my 5gb data contract has been cancelled.

If this is true, then why after 2 months of trying to cancel these fees am I still being charged over R700 a month. My debit order should now be half this amount between R350 and R400...

This is my last contract with Vodacom and from now on I will buy phones cash and use prepaid options so that there are no debit orders from Vodacom and I will use prepaid data from companies like Rain.

The person who assisted in renewing my contract at Menlyn also did not follow procedure. He just showed me where to sign on the tablet and only afterwards I noticed that the 500mb data was not cancelled and that other insurance fees was also added to my contract....