Vumatel internet down again and again and again and every time its waiting for 1 to 3 days

This is now the 7th time in less than 3 weeks that i am offline for more than a day , i am paying for fiber and i am not getting a service that is reliable , i am paying every month on time, and i have asked for credit notes for all the down time my latest ref number is 52436 , i am using R700 to R1500 in lte costs every time my fiber goes down , i cannot continue like this , i want to be refunded for all the down time , and i want to invoice you for the mobile data i must buy every time you cant keep your network up, why you advertise 24/7 internet if it is a lie, i will be getting a lawyer and you will be paying all my downtime and refund me all the money i spend on mobile data