After the credit card expires, if the landlord wants to continue to use this card, he needs to call the customer service staff of the issuing bank to apply for a card replacement, which usually takes effect immediately, but it takes a period of time for the landlord to get his credit card, usually about ten working days. In the meantime, if the landlord's credit card has not expired, you can continue to use it, but after it expires, you can only wait for a new card to come before spending. That's all I know. I hope my answer can help the landlord.