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A continuance of our tips from last week from Mercury:

  • Merchants should attempt to swipe every card through a POS terminal. If the terminal cannot read the card, merchants should take a manual imprint of the card. When using a manual imprinter, merchants should check the draft for a clear impression of the card to ensure that they have captured the embossed card account number. Merchants should also complete the draft with the date, description of merchandise/service, sales tax, total dollar amount and authorization number, and get a signature.
  •  Merchants should never allow customers to tell them how to “get the transaction to go through” (for example, by doing a ticket only transaction without getting an authorization). This will result in a chargeback, and these customers will have “stolen” or obtained items for free.
  • Merchants must obtain customers’ signatures. The signature on the draft must match the signature on the back of the card.
  • If a customer’s card is unsigned, merchants should request another form of identification with a photo and signature. Merchants should request that the customers sign their cards and then compare the two signatures. If customers refuse to sign, merchants should inform them that they are unable to accept an unsigned card for payment and then request another form of payment. The card association rules dictate that card acceptors must not complete the transactions if cardholders refuse to sign the card. Visa, MasterCard, and Discover’s websites provide materials designed for merchant use and offer tips on what merchants can do to prevent fraud.
  • Use caution when taking an overseas order. Fraudulent transactions that originate overseas are on the rise. Remember that international transactions are high-risk transactions. Know your customer. Properly identify the person with whom you are dealing. Take a second look at what is being ordered and where it is being shipped. Did your customer offer you multiple cards as payment? Is the customer asking for immediate shipment? If so, you may have just detected a fraudulent transaction and saved yourself from taking a loss. There is a tremendous amount of fraud with international transactions, and it is virtually impossible to win the chargeback case. Banks outside the U.S. may not support additional security features like AVS, CVV2, and Verified by Visa. If in doubt, do not hesitate to contact Mercury and we will be happy to assist you.
  • Utilize security functions such as entering the “last four digits” of the card on swiped-card transactions and Address Verification and CVV2 code to discourage use of counterfeit cards. Verified by Visa and MasterCard SecureCode are payment initiatives designed to reduce the risk of unauthorized use of cardholder account by authenticating the cardholder attempting to make a purchase online. Authentication makes internet shopping better and safer for both buyers and sellers by reducing the merchant’s exposure to fraud and frivolous disputes, and protecting the cardholder from fraudulent use of his/ her card. Implementing Verified by Visa shifts liability away from the merchant and onto the card issuer.
  • If you are going to run an unusually large transaction, or if you need to manually key numerous transactions when you usually swipe your credit cards, call ahead to let Mercury know what you are doing. Otherwise, your account may be flagged for unusual and suspicious activity, which may cause your funds to be held.