Shocking service and no respose

I notified Web Africa well in advance that the transfer of the fibre service to my new premises, twice by email, phone and WhatsApp (which as today has not been read) has been delayed by 6 days. What Web Africa did and have not corresponded to the rectification is: Cut my fibre service Cancel my contract, (who knows who gave that instruction) Instructed Vumatel to install a fibre line at the new premises that already has a Vumatel instalation. I was orignally told that the process will not take longer than 24 hours. As Web Africa is not responding satisfactory what can I do?