A payment system for facilitating a payment transaction between a payer and a payee is disclosed. The payment system includes a payer access device, a payee access device, and a services hub. The services hub is configured to communicate with the payer device and the payee device; maintain information relating to a payer account and access device information associated with the payer account, the payer account being linked to the access device; generate a tracer ticket in response to a request issued by the payer using either the payer device or the payee device, the tracer ticket containing information relating to the payment transaction; validate the access devices; and authorize the payment transaction against the payer account through conventional payment processing systems. Upon receiving the request from the payee device for the tracer ticket, the services hub generates the tracer ticket and forwards a copy thereof to the payer via the payee device. Upon receiving the copy of the tracer ticket, the payer uses the payer device to communicate with the services hub and forward the received copy of the tracer ticket to the services hub. The services hub then validates the payer device based on the access device information. Upon validation of the payer device, the services hub checks the copy of the tracer ticket forwarded by the access device against the previously generated tracer ticket. If the copy of the tracer ticket forwarded by the access device corresponds to the previously generated tracer ticket, the services hub authorizes the payment transaction against the payer account.