The method for activating China Merchants Bank Credit Card is as follows:

1. Open the WeChat app on your mobile phone and search for "China Merchants Bank Credit Card" in the search box.

2. After the search results come out, click where the arrow points.

3. On the page that appears subsequently, click to follow the official account.

4. Under the official account content, click Finance·Card Selection, and then click "Card Opening·Progress" pointed by the arrow.

5. In the message content box that appears subsequently, click "Quick Card Opening".

6. Read the relevant content about card opening and activation, click Read and Agree below.

7. Fill in the relevant information as required and click Submit to complete the card activation.