Pass the bill onto the digger driver? His Public Liability Insurance should cover it?

It's more complicated then that. I had lots of hedges and tree roots. I relayed a message via someone else to tell the digger man to only remove certain hedges and roots and leave the ones that go under next doors drive but this message never got through and he ripped everything up. Of course the roots that run under nextdoors drive made his drive sag and that now needs fixing. The digger man says he only done what he was told so dosen't want to get involved.

Which leaves mme in the middle to pick up the pieces.