You get a free LEGO Star Wars Mystery Box worth up to €29.95 on purchase over €84 between 11-15 of April. The Item code is 5005704. I heard that the box is already out of stock at Lego online store.
Each Mystery Box contains five items, ranging from LEGO Star Wars minifigures, ships, figures and keyrings plus a voucher with a unique code to get a chance to win an exclusive, limited-edition LEGO Star Wars figure!