A portable device includes a processor; a receiver configured to receive a first message, the first message comprising a notification and a first instruction; a transmitter; a display; and a module card. The module card includes a memory, which is configured to store the first message, a toolkit comprising a plurality of commands, and a second instruction. The second instruction, when executed by the processor, instructs the module card to function as an interpreter configured to interpret the first instruction. The first instruction, when executed by the interpreter, implements the plurality of commands. Implementing the plurality of commands then causes the processor to function as a display device that displays the notification on the display; a receiving device that receives an input as a response to the notification; a determining device configured to determine whether the response corresponds to a confirmation to continue services; and a sending device that sends a second message via the transmitter when the response corresponds to the confirmation to continue services, such that the second message comprises the response to the notification.