Hey mate,
I think the situation you are facing comes down to two-ish main factors. A: This is going to sound weird, but I think this situation may be a school dependent thing (i.e. some schools take students' belief of what they think is right over marks and some, like yours, primarily focus on the grades and decide from that). Generally, though, I do believe that head of departments, in schools, try to make decisions based of what they think is right, which can suck at times. And B: From the message it doesn't sound like it, but it could be a timing issue of either you trying to join in amid a unit or another issue along this lines of this.
I know it may feel like you are being incessantly tortured or mutilated by being stuck in EAL, but if you can't get out of it, then I suggest trying to find ways to engage and interest yourself in the subject. Because, at the end of the day, I am pretty sure English and EAL do the same if not similar external exam. Or, if you are doing 6 subjects, you could not worry about your marks in EAL and focus on your other 5 subjects. Sorry if this is not much help, just thought I try to voice an opinion on this matter seeing its been like a week and you haven't got a reply.