How long do I have to use the 10% new customer discount code I received? 24 August 2022 00:47 Updated The 10% new customer sign-up discount code is valid for 2 weeks from the date of issue. Unfortunately this cannot be extended. The code is valid for a single use only. Full T&Cs can be found here. Related articles Help – the discount code isn't applying during checkout! What’s the difference between a sale, a promo and a special price? Do you have any discount codes? International shipping costs I signed up for the 10% new customer discount, but I didn't receive an email with the code – help!