Hi, Elst.

We appreciate you for following the steps provided in changing your phone number in the statements. Let me give you further steps in fixing your concern. Your browser may accumulate temporary internet files that can affect your browsing experience. To be able to accept any changes you have made in your QuickBooks, I recommend using other supported browsers and utilize your QuickBooks there.

If the issue persists, I suggest performing some basic browser troubleshooting to rule out the possibility of having issues with your browser. Note that too many internet files can sometimes change how your QuickBooks Online (QBO) company behaves, resulting in errors when performing tasks. See the following keyboard shortcuts for suitable browsers to open a private window:
 

• Google Chrome: Ctrl + Shift + N
• Mozilla Firefox: Ctrl + Shift + P
• Safari: Command + Option + P

Check out this article for a step-by-step process on clearing your cache: Clear cache and cookies to fix issues when using QuickBooks Online.

After that, you can perform the given steps again to achieve your goal. However, if you continue to experience the issue, I recommend reaching our support team. They will help you investigate this matter and assist you in resolving this. To contact them, here's how:
 

1. In your QuickBooks, click Help (?).
2. Select either of these tabs:

• Assistant tab and select Talk to a human.
• Search tab and click on Contact Us to connect with a support expert.

On the other hand, I've added these articles as a support guide when handling your invoice in QBO:
 

• Customize invoices, estimates, and sales receipts in QuickBooks Online
• Add a discount to an invoice or sales receipt in QuickBooks Online

If you find yourself having more questions about modifying the number shown in the statements, let us know. We'll be here to let you understand the process.