I have written two letters explaining the (school assessed) student fees. Thus far, of 17 students, I have received 7 payments. How would you word a "gentle reminder" letter asking that those who haven't paid do so? I'm planning on only sending it to those deadbeats, um, parents who haven't paid. Seriously, I know it's difficult for some parents - been there, done that, but it's now been 5 weeks!