It's not really a complaint, as it wasn't AQA's fault, but under the circumstances, I think that AQA will understand how you could be disadvantaged, and if the results were unusually low for a large number of people, I think that will be enough to merit a small UMS boost (just like a sick person has been disadvantaged because of his illness, you have been disadvantaged by that incident).
No experience though, just saying what I think would be fair.