Equipment and methods for facilitating service provisioning in a system that include a payment processor, a number of service providers and a mediator that mediates information exchange between the payment processor and service providers, and a mobile terminal operated by payment card holder. In some disclosed embodiments, service provisioning can be facilitated in cases where the payment processor must reside in a strictly regulated Payment Card Industry (PCI) compliant environment and the service providers operate servers that are not PCI-compliant.