Did you check you registered wallet address with the blockexplorer? http://insight.bitcore.cc/
How much BTX are shown there?
oh did not expect this, yeah the adress I put in Airdrop had 0 BTX, but the adress I recieved money had 1 BTX, so I messed up - I thought it didnt matter what adress I put in. anyway thx for clarifying !
How would they know your other addresses? They are random and no way to know one from another address. All addresses are independent. Make sure you backup your wallet file every time you send or receive coins or you will lose them if you restore from an old wallet.dat backup.
So you are saying that we must backup our wallets after every airdrop that we get in our wallets?
That seems strange because if I use/reuse same address for every transactions I should be good with just one backup of my wallet no matter when I backed-up my wallet file.