E-mail messages are normally answered Monday through Friday (8:30 am to 6 pm – CET), except on 1/5, 2/6, 15/8, 25-26/12 and 1/1. We understand the need to get your questions answered quickly. We typically respond to you within 2 working days. Sometimes, it may take us longer to get you a complete answer. If you don’t hear from us within 5 working days, please contact us again: your e-mail may not have been received.