Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Hi Glenna,
Are you sure the International payments are enabled on the card? Please check with the Bank provider first.
You can also use alternative ways to Pay, like Paypal if you use them.
Add a new bank or credit card to your Microsoft account
https://support.microsoft.com/en-us/accounts-billing/add-a-new-bank-or-credit-card-to-your-microsoft-account
If nothing helps,
If nothing helps, see below to contact an agent:
Sales and Support:
https://www.microsoft.com/en-us/microsoft-365/business/sales-support#
Click Chat Now > Choose Personal:
I hope this information helps. If you have any more questions, don't hesitate to reach out. Wishing you good luck!