I'm no expert at this, but some universities allow for non-standard undregraduate entry. It is similar to regular undergrad entry, however they also look at your GPA. UMAT cutoffs also vary from standard undergrad cutoff generally.
ah thanks stone, I see youve decided BBioMed/BSc at UoM, my friends also doing this but how exactly would it work given that both degrees have practically the same subjects?
Oh, I am doing one or the other. Not both.

And also, if you take a gap year then you are judged as a standard entry. But I cannot afford to take a gap year, because if I screw up the UMAT again, then I don't think I could live with myself.
And focusing on nothing but the UMAT for the next 8 months would likely drive me crazy.