Hi Alfonso Pitarch,
Thank you for reaching out to us on the Microsoft Q&A forum/
It sounds like you’re facing an issue with region mismatches between your profile location and the credit card's issuing country, which is causing payment failures during the Azure benefit redemption process.
The support team should be able to assist with any account-related issues. Please open a support ticket with the Founders Hub team by following these steps: https://foundershub.startups.microsoft.com/signup?drawer_open=true please click on "Support" on this page to submit support ticket.
Please reach out to us if you have any other queries.
If the information is helpful, please Accept Answer & Upvote so that it would be helpful to other community members.