Who owns the fence in the picture?
The green conduit looks broken and damaged. If it was me, I would get VM to remove the huge green conduit and clip the cable onto the fence structure.
My own VM setup is more-or-less identical. I carefully drilled some holes for plastic 'pin plugs' into the concrete gravel boards which then allowed some cable clips to be nailed in and the cable clipped onto the concrete gravel boards. This allows the panels to be removed for maintenance and also avoids having to bury the cable again. Mine has been this way for about 20 years!
Whether or not VM's tech's have the time/skills/tools to do that is another matter which, in the case of VM, often largely seems to depend on the individual person who turns up to do the job. They could alternatively nail clips to the bottom edge of the wooden panel, just means some fiddling about if you ever want to lift the panel out for maintenance.
If the neighbours own the fence, you might not be too much further forward with the above in the event they decide to renew the fence too!