What you want to ask is the reason why the WeChat credit card repayment display card has expired? Network problems. According to the query of WeChat official website, due to the fluctuation of the user's network, the repayment display card of WeChat credit card has become invalid, and the repayment can be re-entered. Wechat is a free application launched by Tencent on 2011121,which provides instant messaging service for intelligent terminals.