Hi!

So, I have a flight booked in March and as a FB Plat, I would like to get an exit row seat on my US flights, the TATL segments are on AF.
Now I have called DL numerous times and have requested my preferred seats.
These are now blocked but not assigned to my reservation number.
Also, I cannot change my seats online either.
Additionally, sometimes, my TATL flight is displayed to depart a day earlier than my outbound TATL.
Could this be the reason why my seat assignments are not showing up?

Thanks!