Property line/tree neighbor question

[PeterB]

It grew pretty significantly in the last year. What started out as a sapling is now sending up branches in all directions, touching what I think are either power lines or telephone lines, or both.

I have asked for them to trim, as stated. I must don't know when (if) they're going to do it.

No idea if it's planted over a septic tank -- I don't think we have those here.