The credit card decline code “07: Pick up card (fraud)” indicates that the transaction has been stopped because the card is suspected to be involved in fraudulent activities. This code is a warning to the merchant that they should not complete the transaction and that the card should be physically retained if possible. This is done to prevent any further unauthorized use of the card and to allow the card issuer to investigate the matter further. Typically, the merchant is advised to contact the card issuer for further instructions.