Step-by-Step Guide: Visit the CBNT website. Click on “Register” and sign up. Verify your mail and log in. Complete your KYC. Submit your details to this airdrop form. You will get 350 CBNT tokens. Also get up to 20,000 CBNT for each referral. Your friend needs to complete KYC and use the platform normally to be qualified as a referral. For more info see this Bitcointalk thread.