If it helps, write down the questions and your answers on a piece of paper, then go to the priest or priestess' profile page and submit your application. You can even put your answers in paragraph form if you do it right. You also need to come up with a good, and interesting, subject for your mail. Something like 'coven' wouldn't work, but something like 'Here is My Application to join your Coven' might work.
I hope this helps you.