Unable to add payment method for API credits – Billing address validation errors with UAE cards

Hi and welcome to the community @Ken_96!

I’ll start with that, UAE is listed as a supported country for OpenAI API access, so that itself shouldn’t be an issue:

https://help.openai.com/en/articles/5347006-openai-api-supported-countries-and-territories

Now I just need clarification before guessing too much:

Are you trying to add a payment method under Billing → Payment methods or are you trying to complete the Billing → Preferences section for invoice/tax details?

I am asking, because in my own Platform billing page, the Payment methods form only asks for card number, expiration date and security code.