Cancellation not processed on time due to Vox staff negligence

I app**** to cancel my LTE monthly contract with Vox Telecoms on the 31st of August 2021, which in turn would be a calendar months notice as per the contractual agreement. I was then put in contact with Lee-Ann De Beer at Vox who during a telephonic conversation said she would have to send me an email so I can confirm my cancellation and reason for cancellation via said email, she also confirmed that I would not be billed again as the service is paid for in advance, I received the email and responded with confirmation of the cancellation and my reason on the 31st of August at 10:54am. On the 23rd of September I received another bill from Vox for the month of October, which should not have occurred as I had given my calendar months notice, as such I queried Lee-Ann on the 26th of September in the same email trail used for the cancellation asking why I had received another bill to which I received no feedback and then sent a follow up email on the 27th of September at 02:40 pm. On the 28th of September I received an email from Vox confirming a cancellation had been processed, so in other words my initial cancellation on the 31st of August was never processed by Vox personal and instead was only acted on on the 28th.

In order to get an answer as to why this had occurred I then emailed the Vox accounts department to ask why I had been billed for October to which I received no response but received an email from Customer services for ticket logging confirmation on the 28th of September at 08:36 am. On the 29th of I called the Vox accounts department in order to try and stop being debited incorrectly to which I was told I must wait for feedback on my ticket which I was not happy about as I would then be out of pocket due to error on Vox staffs part.

It is now the 4th of October and I was debited by Vox over the weekend and their support staff has still not contacted me with regards to my ticket and I am now out of pocket for R699 which should never have been debited in the first place due to my cancellation request on the 31st of August.