In this case, if the landlord has not received the credit card for a long time, you can call the CCB customer service hotline for feedback (by the way, you can check the arrears and repayment date), and the customer service can re-mail the card for you after checking the address. New card registration (except Shenzhen and Dalian, some special cards). There will be SMS notification after sending. After receiving the short message, it is suggested that the landlord often pay attention to it online (Baidu searches for "tracking query system according to mail", and the sending situation shows that if you go to the local post office, you may wish to consider taking your ID card and this registered letter code to the post office to collect it yourself, which makes you feel more reliable. After all, the card is linked to money, so I feel more at ease when I look at it.
As for the debt of 100 yuan, it is suggested that the landlord can check the card number at the financial counter of the nearest CCB outlet and return it directly through the card number.
If the landlord has other questions, you can ask.