My contract has not been cancelled!

I called Vodacom on the 26th September and spoke to Portia and advised my wish to cancel my contract. I was told that it would terminate on the 31st October and effective 1st November I would migrate to Prepaid.

Having not received any confirmation / SMS of my cancellation I went into the Greenstone Vodacom store on the 25th October. The consultant checked the system and advised that my cancellation request had been cancelled. Upon questioning why my cancellation was cancelled, the staff member could not answer nor could he assist me in processing the cancellation again. I was actually told to contact the call centre as cancellations can only be processed over the phone. Really? Well the call centre clearly cannot process cancellations as my original request on the 26th September was not actioned! What type of customer service is this? You walk into your store to ask for help and you are pushed from pillar to post, despite the fact that you are at fault? I tried calling the call centre today 01November but due to high call volume you are blocking calls, so I'm unable to chat to anyone in your call centre. This is absolutely ridiculous. I am hoping you will not debit my account for November - if you do, I will reverse the payment and you will be liable for any bank charges I incur due to the reversal.

I want my cancellation to be processed with immediate effect and I expect a call to confirm this by end of today.