Can't Add IBAN to my dev account

Hello,

I am a developer, and my company and I are registered in France. When I try to add our financial information, I keep getting this error: "You've entered an invalid IBAN for the country you've chosen. Please enter a valid one." I’ve tried three different bank accounts, but the error persists.

I contacted the support , but after three months, they replied that they’re still working on it.

Could you provide any additional information or assistance on this issue?

Thank you!