Are you applying through your school with a buzzword or independently?
If applying through your school I'd suggest submitting it then urgently raising the question on Monday morning with whoever is responsible for coordinating UCAS applications to understand if this will be done, given you are applying by the earlier deadline.
If you're applying as an independent student (i.e. you're a mature student who has been out of education for some time, you are at uni elsewhere and your uni tutors are providing a reference, or similar) then this may be more complicated given the timeframe.