What happened when the third-class card of Xiamen International Bank was inexplicably opened?

It may be an electronic account automatically generated by the system when handling business online. Class III card is a bank card electronic account launched by the bank. Banks will not issue physical cards when handling, and the consumption of Class III cards will be strictly restricted. For example, the account balance of Class III card cannot exceed 1 0,000 yuan, and the daily cumulative consumption limit is 5,000 yuan, and the annual cumulative consumption limit is 1 0,000 million yuan.