1. Feedback the problem to the customer service through Jincai Zhangdai official website online customer service system, explain the situation and submit the corresponding proof materials, which will be verified and handled by the customer service.
2. Find the customer service phone number in official website, and call the customer service phone to inquire about unlocking.
3. Find the customer service email address in official website, Jincai Zhangdai, and send an email to inquire about unlocking.
When contacting customer service, you need to provide relevant certification materials and personal information, such as personal account information, identity certificate, operation screenshots, etc.