I would give principal a day to respond and then resend the request copied to the district superintendent - of course, because it is being copied to the superintendent you will have to go into more detail about history and timelines. You should not stand for this - stay strong.
(edit to add - well the principal obviously was telepathic and knew I would recommend you bringing in a superior to hold the actions accountable - good thing they beat me to the punch...LOL....gratz on the good news!)
dx'd high fsh at age 30
ttc 6 years
5 failed clomid cycles
2 failed IVF cycles
#3 IVF/ICSI worked out fine
FET 2 years later didn't work out
Proud mom of an amazing miracle boy.