Then you are lucky. My address from airdrop.ribbit.me is RhcKtPe7CUKAnkKHBjEWr2JouZJGQQuFFn, but if I check on explorer there is 0.00 ribbits. But my wallet file was created on 19.11.2014 so I should be eligible for aidrop.
Please follow these steps
and here the menu -> wallet setting-> Show advanced options
and the magical scan button
Or go to the history in your account and see if your addres send the coins to other addres!