The present invention addresses apparatuses, methods and computer program product for providing user location in network interworking. In a connecting region, the conductor leads of the end pieces, which are at least partially stripped of the matrix material and the barrier material, are arranged inside a sleeve or bushing, and a magnesium diboride material is additionally present as a superconductive contacting material which is located at least in some partial regions between the conductor leads. The monetary value of the gaming voucher and additional information about the gaming voucher is stored in a database remote from the gaming machine in association with the unique gaming voucher number.