If you add the product you'd like to order to your basket as normal then follow one of the following steps:
If in view basket - add the coupon code in to the 'promotional code' section indicated by a plus symbol (+) then proceed to checkout.
If in secure checkout - add the coupon code in to 'have a coupon code?' section under step 4. review your order then proceed to checkout.
PLEASE NOTE - some coupon codes maybe time sensitive and others may exclude certain products.
We hope this is of help and pleases feel free to contact us if you are still having problems.