I'm here to help you sort things out for you to manage your account seamlessly, @Maison Henry.
Issues like this when entering the account's payment details is usually due to historical data on your browser that's stored for a very long time. Let's try some basic troubleshooting steps to check if that's the problem.
Start by accessing your QuickBooks Online account using an incognito page. See these shortcut keys to open it:
- Google Chrome: Ctrl + Shift + N
- Mozilla Firefox: Ctrl + Shift + P
- Microsoft Edge: Ctrl + Shift + P
- Safari: Command + Shift + N
If you're able to enter the information with ease, then you'll have to clear your regular browser cache. If not, I suggest using another compatible browser. Otherwise, contact our Customer Care Support for them to investigate further and provide the best resolution to this.
I'm also adding this guide on how you can handle your billing and subscription.
Keep in touch so we can help you further with this matter or QuickBooks in general. Stay safe always!