I'm in a bit of a dispute with my nursery. They advertise their rates at £775 per month, and invoice me £4.50 an hour. I've tried to explain the error to them but they came back with "parents that receive free entitlement for three and four year olds are charged at our daily rate of £50 per day".
Any ideas how I can get through to them that they haven't quite grasped basic arithmetic?