Referring to Iam64's advice re MP or local councillor, I know things are different now, but years ago I tried to get an infestation problem sorted at DC's school, got nowhere with the HT, the Education Authority for months, then approached the local councillor - and it was fixed as a matter of urgency. Of course, the councillor got his photo in the local paper and an article on how he had sorted out the problem at a local school (no mention of me!!) but at least they sorted out the problem quickly!
Lack of public toilets in towns.