Cards declined during credit card verification for Custom Domain

Hi,

I’m trying to verify a payment method on my Free tenant to enable a Custom Domain. Every card I try (several valid cards from different banks, all with 3-D Secure) is rejected with the same message: “Your card was declined. Please try adding your payment method again.”

The card verification seems to be blocked before it reaches the bank. Could someone from the Auth0 team look into this or contact me directly?

Thank you.