A payment card comprises a display to support card-not-present transactions where no card reader is available to automate the transaction, and an account number retrieval method for dynamic, one-time use virtual account numbers whose use can assist authorities in rapid fraud and location detection. The account number generator is able to produce a sequence of virtual account numbers over its life that are predictable by the issuing bank and useful in authenticating transactions. A server for the issuing bank logs the merchant locations associated with each use or attempted use, and provides real-time detection of fraudulent attempts to use a virtual account number outside the predicted set. Fraud identification efforts can then be directed in a timely and useful way.