Can't remove Credit Card

The error shown means the card must be removed through the old account’s Azure billing profile, after either replacing it on every linked subscription or canceling those subscriptions.

Remove the card from Azure

1. Sign in to the Azure portal using the same Microsoft account that created the old Azure trial.
2. Search for Cost Management + Billing.
3. Select the relevant billing scope, then open:
   • Billing profiles → select the profile → Payment methods, or
   • For an older pay-as-you-go account, select the subscription → Payment methods.
4. Find your mom’s card, select … → Delete.
5. Azure will run an eligibility check. If Delete is unavailable, the pane lists the subscription, outstanding balance, or other condition preventing removal. Select each listed condition to open the place where it must be resolved. ^1^

The absence of recent transactions on the Microsoft account page does not establish that the card is unused by Azure.

If you want to keep the Azure subscription

Replace your mom’s card with another payment method:

1. Open Cost Management + Billing → select the subscription or billing profile → Payment methods.
2. Select Add payment method, enter the replacement card, and make it the default; alternatively, select Replace and choose an existing card.
3. Ensure the replacement is assigned to every subscription or billing profile using your mom’s card.
4. Return to the old card and select … → Delete.

Azure does not allow removal of a card that remains the active payment method for a subscription. ^2^

If the old trial is no longer needed

Cancellation disables its Azure services, so back up anything you need before proceeding.

1. In the Azure portal, open Cost Management + Billing.
2. Select Subscriptions or Azure subscriptions.
3. Open the old trial subscription and select Cancel → Cancel subscription.
4. Pay any final invoice or outstanding balance. The final billing cycle can take up to three calendar days to close.
5. When Delete subscription becomes available—normally three days after cancellation for customer-led subscriptions—delete it.
6. Return to Cost Management + Billing → Billing profiles → Payment methods, then delete the card. Depending on the subscription type, complete deletion can take longer; the payment-method pane will continue showing any unmet condition. ^3^

You must have the required billing permissions. For pay-as-you-go accounts, this is the account administrator; for Microsoft Customer Agreement accounts, the user needs the appropriate agreement permissions. ^1^

If no Azure subscription appears

This commonly requires checking the sign-in rather than retrying removal on the Microsoft account payment page:

• Confirm that the Azure portal is signed in with the exact Microsoft account used for the old trial. A different email identity can cause Azure subscriptions not to appear. ^2^
• Check Cost Management + Billing and switch through any available billing scopes/directories.
• If the card appears but Azure shows no removable dependency—or access to the old subscription is unavailable—open Azure portal → Help + support → Create a support request, choose Billing, and describe the issue as Remove payment method. Azure billing support can inspect the hidden billing association. ^4^

Do not post the full card number, account identifiers, or screenshots containing them in the support request’s public fields.

References

1. Add, update, or delete a payment method
2. Troubleshoot Azure payment issues
3. Cancel and delete your Azure subscription
4. How do I detach the payment method? - Microsoft Q&A