1. When your card use behavior triggers the risk control system, you will enter the gray list of the bank's risk control system.

2. The judgment method is very simple. If you want to know whether you have been locked up in a dark room, just look at whether the original functions have been reduced.

3. For example, if the temporary quota, cash installment, e-loan, etc. that were available before are not available, then you are entering a dark room.

4. The performance of CMB’s Little Black Room is that CMB’s Mobile Life App has functions such as bill installment and mobile cash withdrawal, but it does not support e-loans.

5. The plot of the big black room is more serious. The mobile life may not have e-loans, bill installments, mobile cash withdrawals, etc. In short, the fewer functions, the more serious the plot.

6. To put it simply, the difference between China Merchants Bank’s small black houses and big black houses is that the small black houses mainly limit cash installments and cannot adjust temporary and fixed quotas. The big black houses are more serious, except that they cannot adjust the quota. , bill points and e-loans cannot be processed.

7. Friends who cannot distinguish between the big black house and the small black house of China Merchants Bank can use this as a basis for judgment.

8. Whether it is a big dark room or a small dark room, it will still have a certain impact on the normal use of the card.

9. So, under what circumstances will one be imprisoned? Everyone must be careful of the following behaviors to avoid being locked up: expired ID card information, using e-loans may lead to illegal use of credit cards, abnormal card use, excessive debt, etc.