Or conversely, is there a way to have a virtual "bank account" that is accepted by credit cards as a source of payment (e.g. via Plaid or whatever) but is actually backed by a credit card?
I am asking because being able to use credit cards to pay off credit cards, without taking cash advances, can provide a lot more options for a person or company.
Obviously you can have two companies controlled by the same entity that each purchase a product from one another, paying only the merchant fee. But does that violate the credit card issuer's policy, or do they really care?