What happened when I received a short message from the bank asking for the deed of house?

Handle other banking business. According to the query of HowNet, there is a contract, that is, the user and the bank handle other businesses, or the bank card is bound to other online businesses. Users must cancel the contract first to ensure that there is no business on the card before they can buy a house. Banks can help users understand what kind of contracts exist, but only those related to banks.