Vodacom Fiber Bad service

I called a vodacom consultant to advise him that i was relocating in November 2021 and he needed to cancel my fiber line and open a new one at my new address. I advised the consultant that my router was fairly new and maybe it can be i can use it at my new home. He said i paid for it and shouldn't ''worry''. End of November i paid my old account (same which i requested cancellation) which was fine since i reported around the 5th of November. End of December, i receive an invoice which looked like a double charge and enquired about it as i only have one fiber line. I was told that i have 2 lines and both addresses were advised(Old and New). Basically the consultant rushed to make a sale and forgot to close my old line in the process. I paid double and was advised that it will be refunded... Jan 22 i receive another invoice with a double fiber line charge. I send an email and 15days no reply or any feedback. What kind of service is this? Why should we customers struggle to get assisted and still being charged for services that are not being used. Very very poor service