Get £5 off when you spend over £35 on full-priced Samsung cases and screen protectors at Tech21! The only place for expert designed device protection.. This offer is valid 20 May – 02 June 2022. The code can be used a maximum of one time per customer, and only applies to full-priced Samsung orders which exceed £35 at uk.tech21.com. The code cannot be used in conjunction with any other offer, or on any products within the Clearance category.