Having problem getting updated credit card to show up in desktop

Thanks for posting your question here, debra11. 

Before going into, I want to ask if you're receiving an error message when attempting to update your credit card information? 

To update your QuickBooks Desktop payment info, here's how:

1. Sign in to camps.intuit.com.
2. Find your subscription in the Product & Services list. 
3. Select Details, and in the Billing Information section, find Payment Method, then choose Edit. 
4. Update your info.
5. Click on Save and Close. 

Please know I'm only a few clicks away if you have any more questions or concerns. Have a good rest of your day!