A bit of a question... i feel a little silly asking it.
I'm trying to book a Turkish airways flight from Kayseri to Istanbul on the 24th November.
The following website says that you get 15kg free and then can purchase more at 3TYR a Kg.
But there doesnt seem to be anywhere to actually add the extra baggage? Am i missing something or do you add the extra baggage after booking the flight?