Coupon codes and discounts can be entered on the right hand side of the Checkout page. Enter the coupon or discount code in the field labelled “Discount”, then click the “Apply” button. You must click the grey “Apply” button to the right of the box in order for your coupon to be applied to your order.If you’ve entered a valid coupon or discount code, the discount percentage for the code will be applied to your order. A line item describing the amount of the discount will also be displayed.If you’re still having trouble using the coupon of discount code, please email the coupon code to customercare@tkcsb.com.