Nice try. But from what I understand, rights under Freedom of information or GDPR provisions on these could be borderline. But ofc. as you said, the easiest thing is for them not to respond. (I think there is time limits of 30 days).
In UK, universities hold all the cards and students hold all the risk of uncertainty. Also because of politics on fee, more places are going to foreigners to the students in India, China and other places, to those who can spend 3/5 times we do.
Should try US unis when pound recovers.