Hello there, @Tanya20.

Have you tried following the steps given above? If so and the issue persists, I'd recommend getting in touch with our Customer Support Team. This way, they can pull up your account in a secure environment and help check you navigate using their tools.

To reach them, you can follow the steps given by my colleague @AileneA. You can also check this link for reference: QuickBooks Online Support.

Additionally, I've added an article that provides reports that give you different aspects of your business: Run reports in QuickBooks Online.

Feel free to leave a comment below if you need anything else managing your customer's invoices. I'm more than happy to help.