1. Contact the bank immediately to understand the specific reasons for the abnormal bank card flow. If these fund transactions are handled by yourself and are compliant and reasonable, then it is fine. Ask the bank what supporting documents it needs and bring them with you. Materials, ID cards and bank cards can be defrosted manually at the bank business hall.

2. If others use stolen information to open a card, someone else swipes a bank card, or other abnormalities, it is recommended to call the police

On February 12, 2015, the People's Bank of China issued The 2014 payment system operation report shows that as of the end of 2014, a total of 4.936 billion bank cards had been issued nationwide, an increase of 17.13% from the end of the previous year.

Among them, a total of 4.481 billion debit cards and 455 million credit cards were issued. Data show that as of the end of 2014, the average number of bank cards held by people nationwide was 3.64, an increase of 17.04% from the end of the previous year. For details, see the "Forward-looking China Bank Card Industry In-depth Research and Development Prospects Forecast Analysis Report".

Among them, the average number of credit cards held per capita was 0.34, an increase of 17.24% from the end of the previous year. The per capita credit card ownership in Beijing and Shanghai is still much higher than the national average, reaching 1.7 and 1.33 respectively. According to the report, China's credit card credit scale has grown moderately, and the credit utilization rate continues to rise. As of the end of 2014, the total amount of credit card credit was 5.6 trillion yuan, a year-on-year increase of 22.5%. The average credit limit of credit cards is 12,300 yuan, and the credit utilization rate is 41.69%, an increase of 1.4 percentage points from the end of the previous year. The total outstanding credit card credit overdue for six months was 35.764 billion yuan, an increase of 10.572 billion yuan or 41.97% from the end of the previous year.

On March 18, 2019, the central bank released the overall operation of the payment system in 2018. As of the end of 2018, the number of bank cards in use and issued nationwide was 7.597 billion. Among them, a total of 686 million credit cards and debit cards are in use. The average Chinese person holds 5.46 bank cards, and on average every two people hold one credit card and debit card.

In addition, the scale of bank card credit increased moderately, and the proportion of total outstanding credit that was overdue for six months decreased. As of the end of 2018, the total amount of bank card credit in China was 15.4 trillion yuan, and the average credit limit of cards was 22,400 yuan. The total amount of outstanding credit card credit that was overdue for six months was 78.861 billion yuan, accounting for 1.16% of the credit card balance payable, a decrease of 0.18 percentage points from the end of the previous quarter. ]

On April 22, 2019, China UnionPay released the "China Bank Card Industry Development Report (2019)".

The report shows that in 2018, UnionPay network transfer transaction value further increased its share of the global bank card clearing market and continued to rank first in the world. At the same time, the scale of bank card issuance and acceptance has further expanded. The total number of UnionPay cards issued globally has exceeded 7.59 billion. The global UnionPay card acceptance network has extended to 174 countries and regions, covering more than 53.7 million merchants and 2.86 million ATMs. Use the card to add value. Services are constantly being enriched.

On March 17, 2020, the central bank released the overall operation situation of the payment system in 2019. It showed that in 2019, the national payment system operated smoothly, the scale of social fund transactions continued to expand, and the payment business volume maintained steady growth.

As of the end of 2019, the number of bank cards in use across the country was 8.419 billion, a year-on-year increase of 10.82%. The average number of bank cards held by each person nationwide is 6.03, a year-on-year increase of 10.40%.

Among them, the average number of credit cards and debit cards held per capita was 0.53, a year-on-year increase of 8.36%. In 2019, 321.989 billion bank card transactions occurred nationwide, with an amount of 886.39 trillion yuan, a year-on-year increase of 53.07% and 2.82% respectively. In 2019, banks handled 223.388 billion electronic payment transactions, with an amount of 2607.04 trillion yuan. In 2019, non-bank payment institutions conducted 719.998 billion online payment transactions, with an amount of 249.88 trillion yuan, a year-on-year increase of 35.69% and 20.10% respectively. [