My company operates in two locations with different branding and different email/phone. One is *** Ltd and the other is *** Ltd t/a ZZZ.

Our customers need to recognise that the invoice is coming from the business in their area and has the relevant branded contact info/email for each invoice. They would be confused by an out of area phone number and an email address that doesn't correspond to the t/a name. All payments go into one bank account and are accounted for as one company, VAT returns etc.