My son's school had informed my son during his first day of Year 13 that the school will no longer be teaching a subject he will be doing for A2. He was told to go to another school to do the subject (not an issue). However the other school teaches according to a different exam board and my son is struggling to understand as there is constant referral back to AS. My son's school has refused to bring the subject even though there are 5 students doing the subject and all are having difficulties. I have complained to the school over the last two weeks but to no avail. I'm asking what do I do now.