Greetings Albaster,

This seems to be a concern that has arisen due to playing in 1.0. You may want to check a Salvager to attempt to claim your Chocobo whistle. Otherwise, you can do a Google search or ask around for the correct method for getting your mount. Since this sounds like an gameplay inquiry rather than a bug report, I will be closing this particular thread. If you're still having problems, please create another bug report thread. Also, please state the steps you have attempted to resolve this issue.

Good luck and have fun!