Tim

I think this is an emergency contingency to be used in a worst case that, hopefully, will not arise.

I'm a childminder, so not quite the same, but I have used the legal services of both Morten Michel (who provide my insurance) and PACEY (the professional body I subscribe to) in the past. They have both provided information, advice and template letters. Morten Michel have pursued a customer on my behalf and I was paid in full before it got as far as court. These legal services are available as part of my subscription / insurance, so worth checking with any professional bodies you subscribe to.