A method for operating a terminal which can be used with a credit account with an account statement and/or with a subscriber's account with subsequent rendering of accounts with an account statement and which can be used in a mobile network which provides communication services. The terminal comprises at least one display device for the reproduction of information and at least one input device for the gathering of information. The account statement of the credit account and/or of the subscriber's account will be reproduced by the display device of the terminal at least after having made use of a chargeable communication service. After using a chargeable communication service by the terminal, a device of the mobile network sends a trigger message which contains information with respect to the costs of the used chargeable communication service to a server of the mobile network. The server realizes a push service, and then triggers a push message to the terminal using the information of the trigger message. The push message contains information with respect to the account statement of the credit account and/or of the subscriber's account, by means of a push service of the mobile network.