Welcome to the Community. I'm here to assist you with your concern about the payment method for QuickBooks Online.
Since checking accounts in this public space is prohibited for your security purposes, It would be best to reach out to one of our Support Specialists. They have the tools required to verify your account and make the necessary changes to correct the billing information in the system.
Before doing so, you can try changing it first through the Account and Settings section of your QuickBooks.
Here are the steps:
For additional insight into updating your billing and subscription, I'm adding the article that I'm sure you'll find helpful:
However, if it's still showing the canceled card after updating the payment method, please proceed with contacting our Support Specialists. Here's how you can reach them:
Please keep in touch with me here should you need any further assistance with changing the payment method. The Community always has your back.