Poor internet connection

I pay vodacom for fiber cell phone contracts and it amounts to almost R2000 a month. Then there fiber is always going down and we get no refunds from them. Nut we must still pay. I'm sick of vodacom fiber if you think of getting it dont. I'm on the point of going back to telkom as we never went down with ADSL line just slow. Fiber is ment to be the best to me it's the worst ever. My experience with vodacom is not a happy one.