At least one computer-readable medium on which are stored instructions that, when executed by one or more processing devices, enable the one or more processing devices to perform a method. The method includes the steps of providing a first contact number accessible to an electronic device having an associated second contact number, receiving at the first contact number from a user via the electronic device an identifier of a request for a business transaction, based on the identifier and the second contact number, determining at least one criterion for fulfilling the business transaction, generating a response to the request, the response including a description of the at least one criterion, and transmitting the response to the electronic device.