Welcome, @Mofojoe and thank you for coming to the QuickBooks Community for assistance.
I'll be happy to explain how to update your credit card on file.
Before you get started a few things to know:
Only a Master Administrator or Company Administrator user can update payment information for your account.
Payment information updates must be done using QuickBooks Online in a web browser. You won't be able to update payment information from the mobile app.
If you purchased your QuickBooks Online subscription through an app store (iOS or Android), you need to update your payment information through the app store directly.
To change or update your credit card information:
Select the Gear icon on the Toolbar, then choose Account and Settings.
Select the Billing & Subscription tab.
Under Payment method, select Edit.
Enter the full credit card information by typing in the complete card number, name on card, expiration date, and security code. Verify the billing address In QuickBooks Online is the same billing address on the credit card statement.
Select Save Changes.
Note: Currently, you can pay for QuickBooks Online with MasterCard, Visa, or AMEX. EFT and ACH are not accepted.
Also, if you have QuickBooks Online bundled with Payroll, updating your credit card information in QuickBooks Online automatically updates your Payroll subscription.
For more information on updating your card, click here.
Once you have followed these steps, your credit card will be updated. If you have any other questions, please don't hesitate to reach out.