It'll be here
https://www.uefa.com/insideuefa/documentlibrary/regulations/index.html
But that's for UEFA gonna guess our sponsors will want some tickets too. Plus staff and ex players
Ok here's what I've got...
"For every UEFA Champions League and play-off match, the clubs undertake to
provide UEFA with the following numbers of complimentary tickets to the VIP
area, including hospitality, for UEFA and the partners:
a. Play-offs: 10
b. Group matches: 50
c. Round of 16 matches: 50
d. Quarter-finals: 50
e. Semi-finals: 50 ...
...Likewise, a number of complimentary tickets in the highest category, stated
below, in one block, in a section located between the two 16m lines, must be
provided to UEFA for its own use, as well as for the use of partners. The following
numbers of complimentary tickets must be provided:
a. Play-offs: 50
b. Group matches: 330, plus up to 42 which UEFA may purchase at retail price.
c. Round of 16 matches: 380, plus up to 45 which UEFA may purchase at retail
price.
d. Quarter-finals: 425, plus up to 52 which UEFA may purchase at retail price.
e. Semi-finals: 475, plus up to 51 which UEFA may purchase at retail price...
...In addition, UEFA and the partners must be given the opportunity to acquire, at
face value, an agreed number of retail tickets, whereby tickets in the next highest
category must also be situated in one block and in a central section (i.e. not
behind the goal):
a. Play-offs: minimum of 350 top-category retail tickets, 370 retail tickets in the
next highest category and 220 retail tickets in the third highest category;
b. Group matches: minimum of 308 top-category retail tickets, 370 retail tickets
in the next highest category and 230 retail tickets in the third highest
category;
c. Round of 16 matches: minimum of 365 top-category retail tickets, 460 retail
tickets in the next highest category and 360 retail tickets in the third highest
category;
d. Quarter-finals: minimum of 608 top-category retail tickets, 710 retail tickets in
the next highest category and 640 retail tickets in the third highest category;
e. Semi-finals: minimum of 829 top-category retail tickets, 920 retail tickets in
the next highest category and 730 retail tickets in the third highest category."
I work that out as 330 extra tickets to Uefa, nearly a 25% increase. The thing about it being in a central section would support the idea that the drop yesterday was sponsor returns.
If we assume the club give about the same amount out to their own sponsors and increase that by 25% also then we could be worse off by about 700 tickets here, complete estimate that though.