An airdrop that caught my eye is GoToken, i check the airdrop and steps were fairly simple.

1/Join telegram
2/ optional - post on their bitcointalk thread
3/ Fill in form

In the form they asked my bitcointalk and telegram username and ETH adress

Now what i dont understand how are they going to send me their gotoken to my eth adress? (they didnt ask for private key, normal wallet etc adress)
Where and how will i see the free gotoken if they only have my etc wallet address?

Thank you
//obviously a new guy here