Sorry for the delay in getting back to you on this! We will consider adding support for non-VAT registered businesses. In the meanwhile, please contact your accountant to make sure you’re VAT exempt and they might advise about the feasibility of mark your service as zero rated in the app.Rob Wood commented
Seem Microsoft are just not bothered... It has taken me 10 emails to explain what I am asking.
They seem to think I am asking them to remove VAT from their invoices?!?!
I don't think they even know what MS Invoicing is?!?!
Anyway it fails to deliver on many levels and I have given up even trying to use the system
Shame as it is handy within the ADMIN of OFFCE 365