First thought, this is just one agency. So apply to another or more agencies. However by doing the return to teaching course displays considerable commitment to wanting to go back to teaching. Also says recent contact experience with children, not neccasarily teaching experience. But the amount of batty regulation invented by the last government, and agencies doing what they like is just a big pain for us. I wish I could be more helpful, only other thing I can think of is volunteering or finding some TA work. So you can work on this one. but you may do this and some agency will find some legislation to make your life difficult for some other reason..