PAYING FOR FIBRE IM NOT GETTING

I upgraded from a 30/30 fibre to 100/100 Fibre in Jan 2021. We only get 15/15 and it drops every couple of minutes. I have tried every avenue available, been to octotel directly, worked with cell c consultants on personal whatsapp later even, BUT NO RESOLVE, NO CHANGE, AND NO REAL DRIVE TO DO ANYTHING ABOUT IT. Debit order went off, for sure, but not getting what we pay for.