An electronic apparatus is disclosed, including a touch screen display; a communication unit configured to transceive data via a network; a processor; and a memory configured to store instructions to, which when executed, instruct the processor to identify a total data usage transceived through the communication unit if the data usage transceived through the communication unit reaches a predetermined reference value, determine whether a difference value between the total data usage and a predetermined warning value satisfies a condition to change the reference value, and change the reference value based on the determination result.