A provisioning system for enabling a mobile communication device to operate as a financial presentation device (FPD) presentable to providers of goods or service is provided. The provisioning system relies on a transaction processing system that normally routes authorization requests from merchants to issuers of FPDs for purposes of authorizing FPD transactions. The transaction processing system stores security keys of all issuers in order to validate transaction data sent from the merchants. The provisioning system monitors authorization requests routed through the transaction processing system and retrieves an authorization request of a financial transaction initiated with a particular FPD. The provisioning system then transmits the FPD data contained in the retrieved authorization request and the security key stored in the transaction processing system to a secure memory element of the mobile communication device to enable the mobile communication device to operate as a FPD.