BILLED FOR VODACOM FIBER WHICH IS NOT INSTALLED

We have app**** for a additional fiber line to our property about two month ago. Everything went well and we have received a LTE router while Vodacom were busy prepossessing for the fiber line to be installed. The next moment we received a message and a email saying installation are complete and they have disabled the LTE line, however there is no second fiber line installed which left us with no internet. We have called numerous times to resolve without any success we even send e-mail to a guy with the name of Farai without any feedback. We have received a bill for no service and no internet. We phoned again and all the lady could say is but it shows that the order is complete on her system and she was unable to help us again so we send a email again to Farai to cancel the contract with also no reply