First, the landlord can edit the short message "last four digits of 3 1 1# card number" to 95533 with the mobile phone number you left at his home, and it will reply you with the total bill amount, bill date, due repayment date, minimum repayment amount and the remaining unpaid amount of this bill.

Secondly, if the landlord needs to know the details, he can also go to the "Account Inquiry Service" on the left side of CCB official website and select "Credit Card Inquiry". After entering the information as required, he can view the details (including interest) of the last six months, as follows:

If the landlord has other questions, you can ask.