Vodacom fibre service is pathetic

Service for Vodacom fibre is disgusting. i app**** for a fibre line through Vodacom in Sept 2018 but when still no line was installed in Nov 2018, and Vodacom saying there was a line installed i sent a cancellation request on 1st Dec 2018. since then i have been billed ever month for a fibre line that was never installed. but worst of all is the service you receive from Vodacom to try sort their mess out. after months the application has still not been cancelled and after 2 months i am still waiting for them to credit me for the fibre that was charged for. now they have blocked my cell account, which i have paid for, because of the outstanding amount for the fibre. Everytime you phone you get the same story, "we'll have to log a request with back office" but nothing gets done. nobody phones back. you cant escalate your issue to anyone senior who can assist. this is the worst lack of service i have ever experience and i would advise nobody to use Vodacom fibre. or even their cell dept for that matter.