Business card

Hi i’m newcomer here. I want to buy business card design license.
It is mentioned that the license can be used by you or one client, in a single end product which end users are not charged for. The total price includes the item price and a buyer fee.

I still confused with one client here. Can the design be used by one name/person only, or it can be used by many names in one company?

Please help. Thank you.