Unacceptable Delay in Refund Processing by VOX

I cancelled my VOX Fibre subscription when I relocated from Johannesburg to Cape Town and returned all required hardware as instructed. The service was successfully cancelled; however, approximately two months later, I was billed an amount of R2,000. Since then, I have contacted your call centre on multiple occasions to request that this amount be refunded. During these interactions, I was advised that the hardware had been received and that the refund would be processed. However, to date, I have not been provided with a reference number for my query, nor have I received any formal communication confirming the status of the refund. I kindly request that this matter be urgently investigated and resolved. Please provide confirmation of the refund process, along with a reference number for this query and a timeline for payment.