There is no guarantee to pay for publishing papers, and it is through an intermediary. This is a hidden rule. Although everyone is doing it, it doesn't mean it is legal. In this case, you can only expose this person on the internet at most, warning him of his dishonest behavior so that everyone will not make the same mistake again in the future.

Resolutely crack down on those intermediaries who are not honest, which is discrediting us.