Cancelling vodacome fiber

I app**** for fiber months ago...guys that came by my house let me sign up and made lots of promsise and did not discuss the contract at all they just hurry you up and say yes to everything you ask..and lei about whats realy going to happen...i asked the guy repeatedly how it will work when i want to cancel and how payment will work..so after they installed..fiber did not work and billing was twice as much as promised...i have called vodacome for more then i month to please fix the problem as i need my fiber..and everytime i got a diffrent story to as why the fiber is not working...i am i fiber technesion and i told them the probleme as it was on there side..but still no one gets back to you or follows up all they do is give you referring numbers and when you follow up they dont know whats going on..so after more of a month of stuggeling and calling Vodacome every 24Hours trying to get them to fix the problem still nothing happend but money went off my acount without having any service..so the last time i called them i told them to fix the problem and if they cant they must cancell..so now they wanted (R3500) to cancell after they guy that signed me up told me i will only pay for the router if i cancelled(R1000) as the installation was free..whats leis that is...now they say because my acount accumulated i own them R6500 for a month to month contract..thats crazy...i am i fiber technesion and i get a lot of these complains form there clients..i had a client paying for 3 months without even having fiber...i will 100% NOT recoment vodacome as a service provider...i need this problem to be resolved as FAST as posible please get BACK to me VODACOME as you are making a lot of trouble...