First, whether the card is opened normally and whether the consumption password is set.
Second, if the card is opened by self-service, the card status may be abnormal. You can call customer service for consultation.
Third, whether the consumption amount exceeds the credit card limit.
Extended data
Card swiping machine is a financial service tool.
The credit card reader has the functions of transfer and remittance, balance inquiry and credit card repayment. , and support bank card recharge, lottery ticket purchase, air ticket purchase, balance inquiry, order payment, game card recharge and other services.
The settlement bank is the most important. It provides a system to complete the transaction, which is responsible for transferring the funds generated by the credit card to the merchant's account, so it charges the merchant, which is the origin of the handling fee. In fact, there is no uniform standard for handling fees. If you can negotiate a satisfactory price with this bank, you can designate it as the settlement bank. Often the bank will even provide you with a POS machine. It is just a hardware carrier of information, and UnionPay is just an information transmission platform. Only banks have the right to send trading instructions and allocate funds.
POS machines must be connected to the network of UnionPay to trade. Different connection methods produce different types of POS. This can be understood as making a phone call. POS with telephone lines is the majority, just like telecommunications is the most common; It is a mobile POS using mobile GPRS network, just like a mobile phone can be carried with you. Even the computer is called MISPOS, which is set up to facilitate the unified management of many POS by large businesses, and is not used by ordinary businesses. The resulting cost is the communication fee, and it doesn't matter if the merchant pays for the telecom mobile.
Since the establishment of 20 1 1, Aifu has made great efforts in the construction of risk control system and the practice of safety technology. At present, the bank-level risk control and security guarantee have been fully realized. At the end of the risk control system, by integrating the platform-wide resources of the People's Bank of China, UnionPay and commercial banks, and taking national policies as the criterion, Love has implemented full-scale fund supervision and transaction monitoring.