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

Restricted regions currently include, but are not limited to: Hong Kong (Withdrawal of OKX HK's VASP license application announcement), Belgium, Cuba, France and its overseas territories (including Guadeloupe, French Guiana, Martinique, Mayotte, Réunion, Saint Barthélemy, Saint Martin, Saint Pierre and Miquelon, French Southern and Antarctic Lands, French Polynesia, Wallis and Futuna, and New Caledonia), Iran, India, Japan, North Korea, Malaysia, Singapore (specifically for margin and derivatives-related

For the avoidance of doubt, the following individuals are not eligible to enter, however: Residents of the Bahamas, Bangladesh, Belgium, Bolivia, Canada, China, Crimea, Cuba, Donetsk, Hong Kong, India, Iran, Iraq, Italy, Luhansk, Malaysia, Mexico, North Korea, Philippines, Singapore, Syria, Russia, Thailand, Ukraine, or Ascension, Bovet Island, Indian Ocean Territory, French Southern Territories, Heard & Mcdonald Islands, Pitcairn, Saint Pierre & Miquelon, Tajikstan, Tristan Da Cunha, US Minor Outlying

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