If BestBuy made a deal to get their customers to sign up for Netflix then yes. You are BestBuy's customer and Netflix is getting access to you. If you sign up

If BestBuy made a deal to get their customers to sign up for Netflix then yes. You are BestBuy's customer and Netflix is getting access to you. If you sign up for a Target card, they get an initial cut and then monthly percentage based on your usage. A bank is managing that card not Target.