Thanks for the guidance but the 'Content' tab in edit invoice doesn't allow me to get rid of all BST references.

I can remove VAT from the middle detail box but it still shows in the top box i.e. VAT reg no xxxxxxxxxx, VAT Invoice

Plus

A VAT total in the bottom box

Editing in the top box says See and edit your VAT number in the VAT centre but I don't think this would change the invoice layout,??

Thank you