I wonder what kind of credit card the landlord has. Most of the cards are new, so there should be no charge if they are not activated, because there is no card fee for CCB credit cards, and there will be no annual fee if they are not activated. Unless you have a personality card, a good voice card, a digital dragon card, or a superhero-Batman variant card, there is a charge for these cards. As long as they are made, there is a charge, regardless of whether they are activated or not. The landlord can go to his home website for progress inquiry, enter the ID number and query the card name. Then judge your card fee. If you don't need that much, you can register a real-name user on his website, and then learn about the card charges through online customer service, or cancel the card.