Hello, landlord. Generally speaking, credit cards are valid for three years. If you don't know, the validity period of a credit card is usually printed with the words "VALIDTHRU" below the card number: VALIDTHRU is the validity period of the credit card, that is, the validity period of the credit card. For example, the date format below the card number is 05/20, which means that your credit card is valid in May 2020. In addition, the landlord can also try SMS activation. If you don't succeed, you can go to the bank counter to handle business. The following is the specific method of credit card SMS activation in Chengdu Rural Commercial Bank:

1. To activate the credit card, please write a short message: "Last four digits of JH# card number".

2. If you need billing information, please write a short message: "Last four digits of czd# card number"

3. Please write a short message: "the last four digits of JFCX# card number" to check the points.

4. For in-line inquiry, please write a short message: "Last four digits of ced# card number".

5. To open SMS service, please write a short message: "the last four digits of ktdx# card number".

6. To increase the consumption password, please write a short message: "the last four digits of XYKZZ# card number" to send the short message number.

In addition, if you don't know which operator the landlord's card belongs to, you can choose the appropriate way for the landlord according to the following information:

Please send it to:1065755911for mobile users and:1065502091for telecom users. I hope my answer can help the landlord!