VUMATEL HAVE ABSOLUTELY NO CLUE

I posted a complaint on Friday 21.04.2023 here regarding the utterly useless service delivery by Vumatel. I have had non stop issues with my Fibre line for 3 months now - EVERY SINGLE DAY. My ISP Provider (Cool Ideas) has escalated the issue with Vumatel on numerous occasions, tickets are give, then cancelled, etc. My line literally disconnects "connected without internet" for a few seconds and then reconnects "connected"... and this cycle repeats itself every few minutes for up to 6 hours every single day - making using this line a total joke! On Friday I get a call from a lady at Vumatel - apologies, escalated, ticket number etc.... Today I e-mail them asking what is happening only to receive a reply stating, and I quote: "Good day Tracey

Thank you for your email.

We have checked the line and it is up, the ticket was closed and returned back to the ISP as all is in spec with fibre. Your ISP has to reconfigure the router.

Kind regards The Vuma Team"

Please can someone give me legal advice now as I can not carry on like this. Vumatel has absolutely no idea about maintenance, technical resolutions or service delivery. This is more clear now than ever and I need to know what legal recourse there is for them failing to supply a service for which I am being charged.