You can earn coins by sharing referral link to your friends. For each referral deposit for doubling, you will receive 10% of the deposit amount.
https://coin2x.me/?r=owcl1weil6
Important:
It is recommended that you provide multiple coin type addresses. The commission will be paid to provided address only. If the person referred by you deposit in Bitcoin, you will receive 10% in Bitcoin. If Bitcoin address for commission payout not available, it will be forfeited.