Cell C no response, really pathetic

Yet again I am having difficulty with cellc getting any sort of response out of you it's been almost a week and nothing

As per my email I sent last week. Sort this out NOW or my lawyer will be in touch as I am paying for a service that I am not getting.

I visited a Cell C shop to try to get the box tested, but they could not test it. But they pointed out that my Fiber line was the fault even though I showed them the Speed test of 20/20 mb/s.

The Black Moblie application and Black box does not work what so ever, but when logging in on a browser I can watch series with no issue

Please find attached the screenshot for the Error on the Black box, mobile application & Speed test results

Can we get this sorted out as I have had too many issues with Cell C in the past 2 months Thanks