Let me provide some information about overwriting customer's credit card numbers, Jan.
With QuickBooks Payments, you're unable to delete your credit card information. Rather you can only edit the information.
If you don't want your old credit card to be charged and have already followed the first part of the article you've provided which replaces a non-transaction card number, we can perform some troubleshooting steps so we can get rid of the error and fix the issue.
You can launch a private window (incognito) and log in to your QuickBooks Online (QBO) account from there. The incognito mode deletes cookies and browser history and prevents issues and errors. I've provided the shortcut keys below for you to follow:
- Press Ctrl + Shift + N (Google Chrome)
- Ctrl + Shift + P (Firefox)
- Control + Option + P (Safari)
- Press Ctrl + Shift + N (Microsoft Edge)
Once done, double-check if you're still getting the same issue. If not, return to your default browser and clear the cache so you can work with a clean slate. Your cache and extensions are probably interfering with the scripts QuickBooks is trying to run the page. If not, you can switch to a different browser.
You can also merge your customer account without credit card information if you are experiencing issues when using the non-transacting card number. However, if you're still experiencing the same, I recommend reaching out to our support team so they can take a look at this and investigate further. They have the tools to pull up your account securely.
Furthermore, check out some of our great resources that you can check out in case you have further questions. Here are some of them: Help Articles for QuickBooks Payments.
Please get back to us if you have any other concerns about QuickBooks Payments. We're always right here to assist you anytime.
