According to the literal meaning, the supplementary card we used may have been used by others before, which made our ID number exist in the application process. Some netizens also said that this phenomenon will occur when applying with their new mobile phone number. At this time, we can get a deeper understanding by consulting the customer service in this area, so as to handle the Su Kang code more quickly.
Second, related reasons Some netizens said that if this happens, it may be the used mobile phone number, which failed to cancel the real-name authentication of the ID card in time, so that although we are using this mobile phone number, it reflects the identity of the previous user. So we can know whether the mobile phone number we use has been cancelled through other channels. After logging out, you will use your own identity authentication.
Thirdly, there is another possibility. We may have registered the Su Kang code through some channels before, but later forgot the relevant information for other reasons. After all, some time ago, Su Kang code was not commonly used, so it is normal for us to forget relevant information. Then we can find the relevant login information by forgetting the password. Of course, this situation can only be used by binding the mobile phone number.