Multiple Brands Under One Amazon Account

Hi there, I would greatly appreciate your help. We own two Amazon brands under separate accounts, each with its own business information. We want to launch a new brand through Brand Registry using one of these accounts, essentially managing multiple brand stores under one account. We have a trademark for the new brand, which is owned by the limited company registered on the Amazon account. I understand that multiple selling accounts require entirely separate business information, but can we have two brands under one account with the same business details and payment cards, just with different trademarks?