hello

i have joined this forum because I love my garden
however I do have a problem
last year my neighbour removed our concrete post and wire fencing between our gardens (old council stuff) and replaced it within the same holes more concrete posts and wooden fencing.
They have now complained to us because we put up trellis on this fence however my argument is how are we to put up trellis is they removed the old boundary fence.

Any advice

MC