i have only 3 days here in bit coin But ive already joined Some Airdrops And look for my coin wallet My Friend claim some other coin in air drop participaing.. but me why i cant get that bounty too ..?? i joined any available airdrops just for my rank only that no qualification i fill up all needs for the form but they didnt put it in my walley.. is it because of my rank?? 
Probably they don't accept your input because of your rank maybe the airdrop you are trying to join does not allow newbies to get some free coins into airdrop. Another reason is that you didn't do the task needed to in order to be part of the airdrop. Some requires one to do tasks in order to join their airdrop. From the info you have given I think the former is the reason why you didn't get to join the airdrop you are trying to join into. There will be many more to come just get your account rank up before joining another airdrop.