Poor service

I've had an unpleasant experience with Webafrica, I signed up for a product and was supposed to receive a Router days later, they went and activated my fibre line but no Router was ever delivered I was billed for services I had no access to, I eventually canceled thier services but I can't get another provider to activate because Webafrica still owns my line. This hostile takeover has made my line extremely difficult as I work from home also, Webafrica says I need to wait till end of March for my line to be clear... Can you please assist me Peter