My invoice has doubled and I don’t know why

Welcome to the Community, @usercarrie1.

If you're referring to your QuickBooks Online (QBO) subscription renewal, try signing into your QBO using a private browser (incognito). There are times that the browser is already full of frequently accessed page resources, causing some unusual responses.

Here's how:

• Press Ctrl + Shift + N (Google Chrome).
• Ctrl + Shift + P (Firefox).
• Control + Option + P (Safari).

Once logged in, try to renew your account again to double-check.

If everything looks good, return to your default browser and perform a clear cache to refresh the system. However, if the issue persists, try using other supported browsers.

For more information about renewing your QBO account subscription, you may visit this article: How to resubscribe or reactivate QuickBooks Online.

Reach out to me in the comment section below if you have any other concerns. I'll be more than willing to help. Have a good one!