Nightmare to get hold of MWEB

I placed an order for fibre on 17 November 2020. To date nothing has happened. I wan't to cancel my order and place an order with another company.

You CANNOT get hold of MWEB...not by phone, not by email, not by any kind of chat app.

MWEB calls back but as soon as I pick up the call is ended. Then they send an sms saying that they tried calling me.