Bad Service

I have app**** for a Fibre connection to my home. I linked my account with the R1. I then paid R49 once of fee and then R99 for a router to be delivered. I received the router about two weeks ago. I received a mail now after two weeks of application stating that installation is not possible and that the cable is full. I tried calling and mailing on numerous occasions and don't get any assistance. I want to cancel this contract and go over to another supplier who can deliver services. Please cancel as your service is very bad before we even started.