REALLY BAD SERVICE

I requested a quote in March/April. More than 2 different people sent me quotes and emails, even phoned me. After everything was sorted Vox told me they cannot install more lines in our area. I haven't accept any installations or anything. Vox contacted me and said they doing a delivery for the router. I told them I don't need their service anymore as I'm relocating. They tried to deliver and the people at the property refused delivery because I was not there and usually arrange with them if something gets delivered. Vox debited my account on 15 October, tried to call them no luck, I then phoned my bank and stopped the debit order. Early morning hours of 20 October I received a letter of Demand Payment requesting payments. They even show how much data I used since end of September. How is that possible if there is no fiber line even installed, no router nothing installed??? I am really shocked with the service from Vox.. They never answer my emails nor my phone calls..