Thank you for reaching out to Microsoft Q&A Forum and providing details about your billing issue.
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Regarding the email screenshot you shared, this may be an alert from Microsoft when an automatic payment attempt fails.
If you’ve already added your new card in the Microsoft 365 admin center but are still receiving notifications about the old card, here are a few steps you may consider trying:
First, sign in to https://admin.microsoft.com and check that your new card is set as the default payment method. If the old card is still showing, it usually means there’s an unpaid invoice tied to it. In that case, go to Billing > Bills & payments, select the outstanding invoice, and choose Pay now using your new card.
To fully remove the old card and ensure it's detached, you can navigate to Billing > Bills & payments > Payment methods > Select the old card and choose Delete.
If it's linked to a subscription, please refer to this official guidance: Delete a payment method with subscriptions or billing profiles attached
If you’ve already done this and the issue persists, it might be worth confirming with your bank that the new card supports online and international transactions.
If none of these steps resolve the problem, the quickest way is to contact Microsoft support directly for personalized assistance. You can find the instructions here: Online support
Please understand that as a forum moderator in this community, I do not have authority to access the information about your billing or subscription for your privacy. However, I'll help you with the right resources.
In the meantime, your licenses should remain active during the grace period but keep an eye on any suspension warnings in the admin center.
I hope this helps explain and clarify the situation. Please let me know how you get on, as your feedback is valuable to the community.
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