Hello, sandsinds.

I want to ensure you're able to send customize invoices accordingly in QuickBooks. Therefore, I would like to ask a few verifying questions. 

Can you provide more details on what format of invoices do your customers receive? Or can you send a screenshot of what it looks like when you email invoices to your clients? Any additional info will help me provide the appropriate resolution of the issue.

Keep me updated in the comments below. Hope to hear from you as soon as possible. Take care and stay safe!