LONDON--(BUSINESS WIRE)--The online printing company UNITEDPRINT SE, with its best-known brand print24.com is running a SUMMER SALE and offers a 15% discount on all products for its customers in the United Kingdom. The promotion will be available from 01.07.2015 until 30.09.2015 via its brands print24, unitedprint, firstprint, getprint and printwhat. print24.com offers a wide range of products in many categories such as print products, promo products, gastronomy, advertising equipment, textile