Changing a seat assignment on flight pass booking
 

Sorry for the ignorance, and I did a search, but how do you change a seat assignment request on a flight pass booking?

I tried via "access a single booking", where you can only print a receipt.

Trying via the flight pass page doesn't work either?

Am I missing something? Do I have to, gulp, call?

Thanks
d

Nope not missing anything, A call is in order.