Pathetic service

On the 2 June 2023 I sent a cancellation e-mail for my previous address and requested a refund since I paid for a service I didn't use. A very rude consultant called me on the 05 June 2023 and requested the reason for cancellation and also told me that a refund will not be possible. To which I said I don't care, that he must just cancel my subscription. Today, 11 days later I get a call for internet that is down for that address still. Can Vuma please cancel this subscription ASAP and send me confirmation of cancellation.