System for holding a refund token

The system (1) has a power supply to transmit an automatic reminder signal to a user of a shopping token (2) or a coin to be returned. The reminder is carried out through acoustic signal (4), optic signal (5) or haptic signal or through physical stimulant. The power is supplied to the system using a motor vehicle-power supply. The system is connected with electrical and electronic signal transmitters of the motor vehicle, so that the resultant optic, acoustic or haptic signal or the physical stimulant is carried out through the signal transmitter.