Bad service

I want to give them 0 rating. This is the worst service provider. Iv used two other providers and went over to rain with all their 5G talk etc. WHAT A LIE!!! We have the full package R999 but on the 10th of the month internet on/off with extreme buffering (one device), Been with them from 1Dec 2021. When contacting them you get a ticket but that's that nobody contacts back. Is this another provided with empty words.