Pyramid Scheme? Who holds these guys to account?

I have had the unfortunate experience of being a vumatel customer for over a decade. What a consistently terrible experience, I am sad to report: Not only have I NEVER EVER reached the speeds I pay for, but the internet literally just drops ALL THE TIME. Unfortunately, there is no choice in my area, considering my entire family has MWEB email addresses we are not willing to kiss goodbye. I feel trapped by Vumatel and it is not a honey trap. It's anticompetitive and expensive.