one wechat can bind 1 bank cards. Wechat payment rules on bank card binding: when binding a bank card, you need to verify the cardholder's real name information; A micro-signal can only bind one real-name information, and the real-name information cannot be changed after binding, and the real-name binding relationship will not be deleted when the card is unlocked; The same ID number can register up to 1 (including 1) WeChat payments; A bank card (including credit card) can bind up to 3 micro signals; Only one payment password can be set in a WeChat account; There is no need to open online banking for bank cards (except Bank of China and Industrial and Commercial Bank of China). As long as there is a reserved mobile phone number in the bank, it can be bound to WeChat payment. WeChat is a free application that Tencent launched on January 21st, 211 to provide instant messaging service for smart terminals. It was created by the product team of Tencent Guangzhou R&D Center led by Zhang Xiaolong. Wechat supports fast sending of free voice messages, videos, pictures and texts across communication operators and operating system platforms. At the same time, it can also use service plug-ins such as "Shake", "Friends Circle", "Public Platform" and "Voice Notepad" which enjoy streaming media content through * *.