VOX on-site technical support for Fibre to the home a non-event

For the 1st two years I had VOX Fibre To The Home, the after sales service was excellent. However in the last year the service has dipped considerably and here I'm not referring to the VOX help deck - their remote service is excellent. Its when the service desk cannot resolve a technical issue remotely and a log is registered for the VOX technicians to do an on-site visit. A log for such an on-site visit was registered on 16 May 2023. I am on a 500/ 250mbps package, but for the last month have, at best been getting about 200mbps download speed. No ethernet cables are working, so my wifi boosters are also a non event. I have followed up numerous times since then, as to when the VOX technicians will do an on-site visit namely on 16, 17, 18, 19, 22, 23 and 26 May 2023 and am still waiting. Unfortunately it looks like I will have to move to another ISP once my year is up!