To provide a convenient communication method using a prepaid card.

In a communication method of a wireless communication terminal, services of a time or information amount equivalent to a price preliminarily purchased can be received. The communication method is provided with a step for recording a communication enabling time or an information amount purchased as information in a storage medium installed in the wireless communication terminal, a step for recording the communication enabling time or the communication amount from which a used amount is subtracted, a step for comparing the communication enabling time or the information amount with a preset condition, a step for recording the communication enabling time or the information amount equivalent to an arbitrary amount preset as information when the condition coincides with the communication enabling time or the communication amount as a result of comparison, and a step for automatically making a payment for the price for the communication enabling time or the information mount recorded in the storage medium at a user's account in a financial institution.