Hi there, @AlisonL68.

I recognize your sentiments and appreciate you sharing these concerns with us. I'm here to help you address the issues you're experiencing with the address, convenience fee, and VAT Agency Registration Number on your QuickBooks Online invoices. Let’s work through these together.

QuickBooks Online utilizes predefined address data tailored for the United Kingdom, and the format signifies its United Kingdom origin. I recommend verifying your company address record to the customer-facing address and adding the correct country abbreviation which can be done on the Account and Settings page. Here’s how to do it:

1. Click on the Gear icon and select Account and Settings.
2. Navigate to the Company tab.
3. Access the Address section.
4. In the Street or City box, enter UK or United Kingdom.
5. Click Save and then hit Done to finalize the changes.

Additionally, to address the issue of the convenience fee, I recommend reaching out to our Live Support Team. They are experts in managing similar concerns and are well-prepared to offer the necessary resolution. They are here to provide you with the best assistance possible. Here's how:

1. Log in to your QuickBooks Online company account.
2. Click on the (?) Help icon.
3. Choose the Assistant tab to receive help from the QB Assistant, or click on the Search tab to enter your question and browse Help articles.

For more information, you can also refer to this article. Scroll down to the bottom of the page where you'll find their phone number, support schedule, and operating hours, allowing you to reach out at a time that suits you best: Get help with QuickBooks products and services.

Lastly, regarding changing the VAT Agency Registration No to the VAT Reg Number on the invoice, we can try some basic troubleshooting steps. Clear your browser’s cache and cookies, or try accessing QuickBooks from a different browser to check if the issue remains. Your current browser may be experiencing a temporary issue with QuickBooks. This action will refresh the system and eliminate old data that might be causing viewing and performance problems.

For future use, here are some articles you can check to help you manage your invoices in QuickBooks Online:

• Customize invoices, estimates, and sales receipts in QuickBooks Online.
• Record invoice payments in QuickBooks Online.

We genuinely appreciate your patience as we work diligently to resolve this issue. Feel free to reach out if you have any other questions or need assistance managing your invoices or any QuickBooks-related concerns.  I'm here to help!