Error message when switching card payment information

Follow these steps to resolve the payment/card issue and restore access to Word:

1. Confirm the Microsoft 365 subscription is active
   1. Close all Office apps (including Word) on the Mac.
   2. Go to the Subscriptions page.
   3. Sign in with the same Microsoft account used in Word.
   4. Under the Microsoft 365 heading, check the status:
      • If it shows expired or past due, follow the on‑screen steps to renew. For home subscriptions, see the guidance in Renew Microsoft 365 Family linked from that page.
   5. After renewing (if needed), reopen Word and check if the error is gone.
2. Fix the payment method problem
   1. Close all Office apps again.
   2. Go to the Payment options page.
   3. Sign in with the same Microsoft account.
   4. Check the card being added/switched:
      • Make sure card number, expiration date, name, billing address, and CVV exactly match the card and bank statement.
      • Ensure the card is not expired, blocked, virtual, or prepaid (these may not be accepted in some regions).
      • Ensure the card is issued in the same country/region as the account.
   5. If the existing card shows an error, update its details or add a different valid card.
   6. If the card continues to be declined:
      • Confirm there are sufficient funds.
      • Contact the bank/card issuer to check for blocks or security measures that might be rejecting Microsoft charges.
3. Make sure the new card is tied to the subscription
   • On the Services & subscriptions page, select the Microsoft 365 subscription and choose the option to change the payment method.
   • Assign the new/updated card to that subscription so future renewals use it.
4. Restart activation on the Mac
   1. After fixing payment, sign out of Office on the Mac (Word > Preferences > Account > Sign out, or similar account menu).
   2. Quit Word and any other Office apps.
   3. Reopen Word and sign back in with the same Microsoft account that has the active, paid subscription.
   4. Wait a moment for Word to re‑check the subscription; the “Account Notice” or payment error banner should clear if billing is now correct.
5. If the card still cannot be changed or errors persist
   • Use the official billing support path for home accounts:
     • Go to the Microsoft support site, choose Microsoft 365/Office, then select a billing or subscription category and use “Chat with a support agent in your web browser” (or phone callback where available).
   • For issues like duplicate charges, unrecognized charges, or persistent card decline despite correct details and bank approval, support must review the account directly.

References:

• Office error "Account Notice: We've run into a problem with your Microsoft 365 subscription"
• Troubleshoot payment option issues
• Manage payment methods for Microsoft business accounts
• Troubleshoot a declined card