I have also encountered such a problem, suggesting that your name, ID card, bank card validity period and mobile phone number may have incorrect information. I consulted WeChat customer service several times and found that I don't know if this is the case with the landlord: 1. This card is a new one. 2. There is a problem in merging the customer account numbers of this card. I later called Pufa's customer and asked him to merge his account again. After waiting for 1-3 working days, it is no problem to rebind.