I got my Chocobo Whistle a few days ago from Maelstrom and obtained my personal Chocobo. When I tried to use the Whistle in Ul'dah, my Chocobo did not come and on top of that, I got an error message saying that I do not have the Chocobo Whistle. I went back to where I got the Chocobo Whistle in Limsa Lominsa and Maelstrom and they would not give me a replacement whistle.

What do I do to get my Chocobo Whistle back?