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

Valid bank statements Tax form, tax statement, or tax return Pay stub that contains residential address Valid rental agreement (the remaining tenure cannot be less than 2 months) A valid government-issued document that shows your current name and address Valid utility bills such as water, electricity, gas, home attached tv or internet bills, landline telephone bills (mobile phone statements are not acceptable)Before uploading your Proof of Address, please ensure the following: The POA must be your

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