After opening 1 and sinus installment, there will be a pre-credit line, which is not the final line, and the final line will be displayed only after the application is successful, so this line cannot be used. 2. The relevant platforms are overdue, such as the security borrowing of today's headlines, because these two softwares are one, and if they are overdue, the quota will not be used. 3. It's been useless for a long time. If you apply for a line and don't use it for a long time, it is easy to have an abnormal account and be easily controlled by the system. You can usually spend several times in cash to improve our activity. 4. Changing the information, especially the replacement in the mobile phone number, will be considered by the system as the risk of account theft. We should not change the information frequently after filling it in. If it has been modified, we can only improve the activity until the end of system risk control. 5. Withdrawal by installment. Most users don't have the habit of spending money in Tik Tok. If they want to withdraw the amount of sinus installment to WeChat or Alipay for consumption, the amount will be frozen when it is detected by the system, because this amount is mainly used for real consumption. If you want to withdraw money, you can find a professional merchant, and there are contact information on the picture. They operate every day, which is more professional.