Extremely bad service

Very bad service from Vodacom fibre I have downtime once a week every month and all they cam say their technicians are working on it , I Spoke to Lazola call centre agent who started screaming at me saying he can't give me his surname , his shift team leader Ncedisa could not attend to my query as she was busy and this is a every month thing I told them I want a discount and I am not paying the full amount I need discounts for all the months I've been down . Don't use this network provider it's very bad