First log in to the WeChat client, select "Add Friends"-"Official WeChat Account" and enter keywords such as "China Construction Bank" to search for the official WeChat account of China Construction Bank (micro-signal CCB_elutong) certified by WeChat, click "Follow", or pay attention by scanning QR code and sharing business cards. How to bind: A user holding a current savings account or credit card of CCB sends the keyword "bind" to the official account of CCB WeChat, or clicks the menu of "account inquiry" and "account inquiry/repayment" to verify the current savings account information or the identity of the credit card customer, so that the micro signal can be bound to the savings account of CCB under his name or all CCB credit cards.