You can input your ETH address on your ITC profile which is accessible via the app.intothecryptoverse.com/profile page or the Profile Screen on the ITC App.
Be sure to use a valid ETH address that is associated with a wallet that supports NFTs and ERC721 tokens (for example, Metamask).
Do not use an address associated with an exchange account. ITC is not responsible for NFT's distributed to addresses that don't support NFTs.