I don't think it should be on the pavement - there have been several on our little street and none have been on the pavement (don't think you're allowed to obstruct it).
If you don't get on with them, I would give your local council a call - they are normally very hot on builders flaunting rules (I think the skip should have a light on it as well) - there are all sorts of fines they have to pay if they do it wrong.