Poor service at Vodacom for cancellations

On the 21st of Sept 2020, I was at Vodacom Hatfield to cancel my contract and go onto pay-as-you-go. At the same time I was on the phone with a Vodacom agent for cancellations & he emailed me the quotation or cancellation. I paid the cancellation fee in full whilst still in the Vodacom store. I was told that my cancellation would be approved and would be on pay-as-you-go from the 1st of October.

As of today, I have faxed them 3 times, I have phoned to query 3 times and have just been given uphill all the way. Still nothing has been done - my monthly instalment is now being deducted from my cancellation fee of R558.00. I get NO feedback from Vodacom and their pathetic staff! Poor poor service!!!