64/65 year old vaccine query

[Keep1984fiction]

My DM has kept in touch with many of her schoolmates. They were born September 1955 until August 1956 so some are 65 now and in a high group for the vaccine the calculation showing they will be due late January to February.
Some are 64 now but will be 65 by February and a few won't be 65 until August.
Trying to find out if when you turn 65 you are upped a couple of tiers and if 64 year old will be called before 63 year olds or of all 60/64 year olds will be allowed to be vaccinated at the same time.
Looked on line but can't find anything

It’s not done by school year! If you are 65 or over you will be done in that group, 69-64 in the next group down. When you turn 65 you’ll be in the 65 and over group, but those not turning 65 until August won’t be bumped up into the earlier months.

And some trusts are doing it in age order, so 64s before 63 yr olds, but others in age groups do all 60-64s together.

Thanks very helpful so as soon as someone turns 65 they get bumped up 2 groups over the clinically vulnerable under 65s.
Then it's the policy of individual trusts as to if the 60/64 group are taken as one group or subdivided on age.