Worse customer interaction

I was disconnected with my fibre services as MWEB provided a new rooter whereby the old router was still working there's should be evidence of the call whereby I advises them that the matter was resolved on the call . Two days after the matter was resolved a new rooter was delivered and I immediately gave it back . The same weeks weekend I was disconnected whereby MWEB was my primary source of internet . After being disconnected for more than a week i decided to cancel immediately and went to go look for another service provider. MWEB is continuing billing me every month whereby I have proof of my cancellation. Hello Peter please help as I cannot pay for something that I have cancelled