Extended data:
Problems needing attention in using pos machines:
1, don't brush the whole number or something close to the whole number, such as 50,000 yuan, 20,000 yuan, 49,999 yuan, 19999.99 yuan, which is easy to cause UnionPay to adjust the bill and is not good for customers' credit cards. The correct credit card amounts are 19850 yuan and 36840 yuan. Of course, some of them.
2. The monthly consumption of 2.pos machines cannot exceed 3 million yuan. At present, many pos machines can consume 65,438+10,000 yuan per pen, and the daily brush amount is unlimited, but it doesn't mean that you have to spend hundreds of thousands every day. Don't use all the cards on one machine just because the rate is low.
In this way, the alarm of the bank's computer risk control system will issue a red bill. Remember, UnionPay checks those credit cards with large credit lines first, and normal business is no problem. If you find it, you won't be in trouble. Correctly control it at around 1 10,000. If it is not enough, apply for more pos machines.
3. Regarding the ratio of credit card swiping, it is best to swipe 8 credit cards with 2 debit cards. It is not possible for a legal person to apply for a pos machine to use his own debit card to swipe his card. It's best to swipe your card with a friend's card, regardless of size. If you swipe your card 1.8 million today, leave 20 thousand as a debit card.
Instead of swiping your credit card from beginning to end, UnionPay has an intelligent monitoring system, which will analyze the credit card and debit card swiping ratio. If it is a credit card from beginning to end, the risk control department may check your credit card record.
It's best to sign in person, not on behalf of others. If someone finds that your receipt is signed by the same person, even if you are in normal business, he will mistakenly think that it is best to keep the receipt for more than half a year.
The most important thing is that for various reasons, swiping the card will fail. It is often found that car owners can't brush like this, but brushing 9950 is not enough. Brush 9800 is not enough, and brush 9500 again is not enough. This operation will continue until the card is successfully swiped. This is the biggest risk and will be recognized by the system immediately.
Remember, if the transaction fails at most twice, don't brush it again. The correct way is to ask the cardholder to call his card issuing bank, why not, how much can be swiped, and then swipe when there is a result.