Over the last two years my neighbours and I have been asking the council to remove a tree on the pavement outside our properties. It is causing damage to our cars, drives, drains, telephone wires and television aerials, which is costing us money. Last year we were notified that the tree was to come down, but we have now discovered that the plan has been abandoned because there have been complaints.
It sounds as though the tree may be the subject of a preservation order, or perhaps someone has applied for an order to be placed on the tree. You could point out to the council that you will now hold them responsible for any further damage caused. In any case it might be an idea to contact your insurers and advise them of your predicament.