Terrible customer services (Zoom Fibre and Tech 5 Group)

I subscribed on Zoom Fibre on 27 May 24, on 07 June 2024 they installed a device which was left with no network. Upon series of on call and technical engagements the device started working with a network coverage limited to 1 m radius. Zoom Fibre then said I must call Tech 5 Group whom is in charge of the network services. I engaged Tech 5 Group who after a series of technical activities concluded that they will report the issue to Zoom Fibre on the 15 June 2024. Upon seeking for feedback on 02 July 2024, no one seems to know or care about my case, I am being referred to all the processes that I have undergone. I am without service until thus far being a new client and nobody cares from this service providers called Zoom Fibre and Tech 5 Group.