Seats selection: how if you can't add your FF number?
Asking for a friend: I've tried to find the answer but failed. When you book with Qatar, they say you can only add the IB+ number during booking or at check-in. But if you are Oro or Plat and should have free seat selection, how can you add the number to claim the perk without waiting for check-in (when all the preferred seats will be selected)