Ask them what AWR has to do with PAYE. Absolutely nothing at all. They are just trying to get their cut and not to take on any of their responsibilities. I'm really not sure about self employment and supply teaching - self employment has some quite strict defintions, especially about who decides what work you do and who is responsible for it. I am a self employed tutor and I also do workshops in primary schools - so no one tells me what to do!!! I also understand about childcare and hours - that's really annoying and upsetting for you. But a job is a job at the moment.