You may reach out to the third-party payment channels via contact details below: Fiat partner How to contact Simplex https://www.simplex.com/support/ Banxa https://support.banxa.com/en/support/tickets/new MoonPay https://www.moonpay.com/contact-us Mercuryo mailto: support@mercuryo.io Coinify https://help.coinify.com/hc/en-us/requests/new UTORG https://utorg.pro/contacts/ Advcash https://support.advcash.com/hc/en-us/requests/new Fiahub https://www.fiahub.com/livechat/ Itez https://itez.com/contacts

You can reset the existing passkey or add a new one before removing any passkeys you no longer wish to keep.Create a passkey Before you create a passkey, make sure you at least have: A device with Windows 10 or macOS Ventura, or A mobile device running iOS 16.0.0 or Android 7.0 or later, or A USB security key that supports the FIDO2 protocol Make sure you're using a FIDO-supported browser with: Chrome 109 or above Safari 16 or above Edge 109 or above Log in to your account at okx.com and go to Profile

Kindly refer to: https://www.okx.com/docs-v5/en/#affiliate-rest-api