I'll help you change the banking details in your invoice, @pat108.
To edit the banking details on your invoice, you'll need to make changes to the template you're using for that specific transaction. Below are the steps to guide you:
Go to Settings and select Custom form styles.
Locate the invoice template, and select Edit from the Action column.
Select Add your EFT details. Note: It is only possible to add your bank details to the Airy new invoice template. If you can’t see this option, select Change up the template to update your template to Airy New.