BEWARE - You can NEVER get out of your contract!

I have been a Vodacom customer for over 20 years and I cannot believe how ***** they are when it comes to trying to cancel your relationship with them. They say you cannot do it via email and have to call but the cancellation call centre doesn't pick up EVER. AND the one time I got through the service agent told me that the account had been stopped BUT NO - I was debited as normal the next month and the month after that. So to keep their stats looking good and profits in their account - they just completely prevent any way for you to close your relationship with them. I feel trapped, ********** and abused by them when I have been a loyal client for so long. It is a hostage situation. I have cancelled the debit order through my bank but worry about my credit rating impact if they keep debiting my account.