Okex.com offer a $90 bonus for signing up and completing certain tasks (like depositing $100, or purchasing crypto). $10 is paid in BTC, the rest is in trading fee credit, to get the bonus sign up using the promo code / referral link (below) as part of their refer a friend scheme.
To get the bonus:
Sign up using the link or code above .
If you do not receive your bonus, please contact us so we can help to claim it for you.