Trouble with UCAS reference

A student isn’t a teaching professional qualified to provide an academic reference. Unless you left school/college 5+ years ago then most universities will expect you to provide an academic reference from your most recent place of formal education.

My school said they wouldn't be able to give me any mock exams to check my progress and so even if they provided a reference it would be with no predicted grades. If I had any teacher or even somehow got one of my old school teachers to agree to give me a reference with predicted grades, would they be allowed?

Are you resitting exams? Did you ask your universities if they needed predicted grades from someone resitting? Most universities will accept a reference without predictions if you are resitting.

Yes resitting. I didn't ask if they needed predicted grades in the emails but a few have told me anyway that they don't require a reference or predicted grades. I've heard that without predicted grades universities only assume that the student will get one grade higher for each subject than what I achieved last year, I'm not 100% sure about this though. I understand that this may be the best I can get, but the improvement I've made is way higher than just 1 grade up for each subject. I just hoped there was a way I could show that.