You can find the terms on Airdrop Terms & Conditions . The page states that
In order to be eligible for the Airdrop, users must:
Be at least 18 years of age
Register on the website
Pass KYC/AML and liveness checks to validate they’re a real person
Not be a resident or "person" of the following countries: United States, Afghanistan, American Samoa, The Bahamas, Botswana, Democratic People's Republic of Korea, Ethiopia, Ghana, Guam, Iran, Iraq, Libya, Nigeria, Pakistan, Panama, Puerto Rico, Samoa, Saudi Arabia, Sri Lanka, Syria, Trinidad and Tobago, Tunisia, US Virgin Islands, Yemen.
A country may be added or removed from the list of supported countries at any time for any duration. This is set at our discretion.