OKX
Where to find your OKX UID
OKX mobile: tap the profile icon in the top-left → UID is the long number under your nickname. OKX web: avatar drop-down at the top-right → UID is the first row.
Already have an account?
OKX has no official KYC transfer for switching referrals. You must close the existing account and, after the 30-day cooldown, register a new account through the FendFee link. Withdraw your balance before closure, close open positions, and end every earn/staking and locked product. Once you complete KYC on the new account and submit its UID from the dashboard, the cashback kicks in. Step-by-step guide: https://www.okx.com/help/how-do-i-close-my-account-app
KYC / referral transfer
OKX does not offer a standard KYC transfer flow that re-points an existing account to a different referral link. The only way to convert an account that wasn't opened through the FendFee referral is to close the existing account and, after the cooldown, re-register through the FendFee link. OKX may enforce a 30-day cooldown before allowing re-registration with the same phone, email, or identity. Before closing, withdraw your full balance, close open positions, cancel pending orders, and review every earn/staking position, bonus, and locked balance. Official guide: https://www.okx.com/help/how-do-i-close-my-account-app