It is suggested that the landlord can use the mobile phone number you reserved in his home to edit the short message "the last four digits of CCYH# card number" to 95533, and you will not be answered until the short message is sent. You still have to pay back the current money (this is relatively real-time, and you can count the online repayment of the landlord through the CCB network, of course, it is not counted if there is no cross-bank or third-party repayment). If the display is 0 or negative, it means that the current bill is not needed.
If the landlord has other questions, you can ask.