Method for providing reductions on products and/or services

Method according to one of the preceding claims, characterized in that the information about the product purchased or the service utilized that was sent to the central administration unit is stored by the central administration unit together with the data of the customer.

Method according to one of the preceding claims, characterized in that cell phones and/or land-line telephones are used as the telecommunication devices.

Method according to one of the preceding claims, characterized in that any type of data transmission, particularly e-mail messages, fax transmissions, SMS messages, transmission of video sequences, individual pictures, audio sequences, documents, or any form of data transmissions billed in time-dependent or volume-dependent manner can be utilized by the customer as the telecommunication service.

Method according to one of the preceding claims, characterized in that making available memory space on a storage unit made available by the central administration unit can be utilized by the customer as another data technology service.

Method according to one of the preceding claims, characterized in that information concerning the rebates of several products purchased and/or services used is transmitted to the central administration unit at the same time, in a message from the customer.

Method according to one of the preceding claims, characterized in that the customer opens up an account with the central administration unit, particularly by providing personal data, before the first time he/she takes advantage of a rebate.

Method according to one of the preceding claims, characterized in that the customer sets his/her telecommunication device in such a manner that he/she handles his/her communications entirely by way of communication devices of the central administration unit or, optionally, when calling up the rebated telecommunication services or the other data technology services.

Method according to one of the preceding claims, characterized in that the coded information of the product or in connection with the service is automatically detected by the telecommunication device.

Method according to one of the preceding claims, characterized in that when an attempt is made to utilize telecommunication services or other data technology services that are not covered by the customer's account balance, the data transmission is not transmitted to the addressee indicated by the customer and instead, a message to this effect is sent to the customer.