Vox billed me R2000 for a router I tried to return

I was with Vox for just over a year until I had to move. I cancelled my contract, giving the required notice period. My contract was due to end about two weeks after I had to move out of my apartment. I moved out, and then about two weeks later my contract was cancelled as expected.

I then received a notification from Vox that a courier would collect their hardware (wifi router) at my registered address, which was the apartment where I no longer lived. I rep**** and told them I no longer live there, and provided my office address from where the courier could collect the hardware. I received no response.

About a week later, I submitted a support ticket via Vox's customer zone explaining all this again, and that I have not had any feedback regarding the collection of the hardware. I received no response.

I then got a call from the courier saying they were at my old address to collect the router. I explained that I don't live there anymore and asked that they collect from my office, the same address I had provided Vox. They said they can't do that and to take it up with Vox.

I received no feedback on either the email or support ticket I had opened with Vox.

A few months went by and since I had not received any response from Vox, I considered the matter closed. I had no use for the router and threw it away.

Now, about 7 months later, Vox phoned me and said I am being billed R2000 for hardware not returned. I explained the situation, but they hold firm that the courier would have collected the router from me and refuse to even acknowledge my attempts to make contact and arrange for collection at a different address.

I had the router on my office desk for about two months and heard nothing from Vox. I refuse to now be held responsible for their lack of communication.