Book Direct And Earn A $20 Voucher.. The campaign is valid for bookings made exclusively through www.moevenpick hotels.com and for stays between January 1st, 2015 up to and including June 30th, 2015. Voucher credit is earned per booking and valid only during the period of the stay booked at the particular hotel. Voucher credit is non-transferable, is void after checkout and cannot be used for future stays.