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- go to link : http://refer.data.eco/invite/3NeqUeqh
- enter your my ether wallet address
- follow their Twitter account: https://twitter.com/Blockchain_Data
- you see a code below.
- copy and paste the code ------ in their telegram group: http://t.me/blockchainDATA
- congratulation, you earn 10 data coin.
- copy and share your referral code to your friends and earn 10 data coin for each friend when they sign up using your referral code