If the option to create multiple brand themes has been activated for your account, you will notice that each brand theme has it's own brand company details which you can access from the brand theme's dashboard.

On clicking Brand company details, you'll be directed to a new page where you can edit the company name, address and telephone number that will be automatically inserted when that brand theme is selected for a report.

When the "multiple brand themes" functionality is first activated for an account, the company name, address and telephone number as stored in Account Admin > Your Company Details will be copied across into Brand Company Details for the first brand theme. However, once copied across these details can then be edited and updated independently from the company details in Your Company Details.