Repeat advice
Glen,
From time to time, I read your posts and I empathise, but you are spinning your wheels on wet grass.
I gave earlier advice, and just now looked back, and note that it was about 4 1/2 years ago on 18 Oct 2019.
It said:
" I once had a major disagreement with someone. I tried to negotiate but was continually ignored. I had to get my lawyer to sue him, which then resulted in a court date. Only then did he negotiate...."
Simple advice, and given by many......but IMO the only way you will get justice in a reasonable time frame.
Good luck
Seabreeze