VOX / VUMTEL Nightmare

I placed an order with VOX on the 18/03/2020. After 2 installation appointment sent to the incorrect address, 27 attempts to get feedback via mail (3 of which contained my CORRECT address) my address was still captured wrong. After cancelling the order on 23/03/2020, again receiving email confirmation that the order is cancelled, Vumatel informs me there is still an active pending order from vox on my address. This means that my new ISP cannot take ownership on that line. I have spoken to Vox who apparently cannot cancel / reject the order, this has to be done via the ISP. the ISP is not reachable telephonically and do not respond to mails. And no one is taking ownership? Pathetic.