Unable to get/use Chocobo Companion

[Woggers]

Hello,

You have a special PNJ in each capital (idk the english word, in french it's "consigneur") who can give you back items from 1.0, and chocobo whistle is one of them. In Gridania he is near Mog postman (theater).

Yup this, the NPC is called the Calamity Salvager. They can be found in all 3 starting city states.