Hi there, @eliterenovation63. You can remove it by editing your default invoice form. It was showing at the bottom of your invoice because you accidentally added it in the Footer section, specifically the Message to customer field.
Go to the Gear icon > Custom form styles > Default Invoice Template > Edit > Content. From there, scroll down and click the third box of the form. Then, clear the VAT number in the Message to customer table. Don't forget to click Done to save the changes.

On the same page, go back to the first table and make sure the Business (CIPC) Reg No box is unchecked so your VAT number doesn't appear in the upper part of your invoice form.
If you have additional questions, don't hesitate to return here.