Changing households in uni halls

I live in halls of residence with a current total of 3 people in my flat (usually there's 4), we have been classified as a household since we moved in.

We have now been informed the "households" are expanding to include 6 flats (each with 2-3 people in), to avoid people feeling isolated during lockdown. However, I do NOT want to meet new people at this current time or be in a household with them, due to the increased covid risk.

The hall staff never consulted students before making the decision and now I've been told the decision is final and the six flats are free to mix with no masks or social distancing etc because it's now a single household. Plus once the university reopens in a week or so, more students are moving in and I will be in a household of 20+ people.

Just wondering if uni is allowed to change what classifies as a household and join households together during a national lockdown? I would have thought this goes against the law because households are not allowed to mix. But the uni is getting around it by changing what classifies as a household. Any advice?

The national lockdown rules I doubt were explicitly designed with university hall configurations in mind.

Normally it would be obvious what a household is, i.e. halls are cut into flats which share kitchens/washrooms etc.

The idea that they are going to arbitrarily re-group these sounds like a grey area and outside the spirit of the rules.

You could email in a complaint but I suspect its a grey area, and this has brought on b y lots of freshers complaining and wanting more people to mix with.
Im sure if you kicked up enough they would reverse it, depends how far you are willing to take it.