Having credit card information blocked on WeChat is a punitive measure taken by WeChat officials in order to maintain user experience and social order.

Once a user is found to have sent credit card information, WeChat will ban their account to warn them not to send harassing information again. During the period of account suspension, users will not be able to use all functions of WeChat, including sending messages, viewing Moments, adding friends, etc.

In addition, WeChat will also educate users to remind them to abide by social ethics and not to send private information, so as not to affect the normal use of WeChat by others.