Hey there @Ghannouchi_Inês apologies on the delay as our support team is currently experiencing higher than normal volume. I was able to locate your ticket though, and flagged it with the team. We’re unfortunately unable to help with account/billing issues here on the forum, but you should be hearing back from our team soon! Thanks.

It sounds frustrating to encounter issues while upgrading to Figma Premium. The message you received typically indicates a problem with the payment method or a potential issue with your bank. Double-check that your payment details are correct and up to date in your Figma Admin settings. If everything seems correct on your end, contacting your bank to ensure there are no issues with the transaction might help resolve this issue.