Hi, i am have issues from getting my chocbo mount.

I have my main story quest done up to titan, joined maelstrom as my companion. but the commander never give me the quest My Little Chocobo (Maelstrom). So i checked with my completed quest, it has shown that i have completed My Little Chocobo (Twin Adder). I have also tried to get chocobo from chocobo stable in all 3 cities. problem still remain as it is.