After placing the item you would like to buy in the shopping cart click on 'Go to checkout'. There you will see 'Enter Discount Coupon Code' box. Simply enter this code: TEC203 and press Apply and you will receive a 15% discount off your order. Note: You first need to select the shipping option before you enter the code or it may not work. When you enter the discount code you will not see the total of the discount, but the item subtotal will reduce. The discount does not apply to the shipping option. It only applies to the item total. If you encounter any problems during this process please contact us immediately and we will advise you on further steps.