In the contact form you can express a request for supplementary performance using the free text field. We assume legal liability for material defects for goods purchased from us. Complained goods are checked by our technicians and processed in accordance with legal regulations. If your request for supplementary performance (repair or new delivery) is not possible, e.g. due to a production stop, it may be necessary to send it to the manufacturer. Please note that in this case the processing time may be extended as we have no influence on the manufacturer's processing time.