What is offline trading? What should I pay attention to when swiping the card at the front desk?

Offline means pre-authorization. During C/I, guests are given some money as a deposit. Offline means using this money to settle accounts for a guest. According to bank regulations, the offline amount can only exceed 15%. Our hotel only allows it to exceed 1% for better insurance, which means that we ask for a deposit of 1, for the guest. If the guest spends less than 1,15, they can go offline. The credit card must be signed clearly. If it is not signed, see if the English under the card is the same as the guest's certificate. You can also ask the guest to sign his name on the back. Guests outside the store must sign the card with a certificate. Longka, we can't use POS machines here. We need authorization. Remember to look at the 3-digit security code on the back of the card. Of course, if you can use POS machines, you don't have to take care of it. Korean company cards can be accepted reluctantly if they are signed by guests, but can be rejected if they are not signed!