A. Please firstly check that the product you are applying the discount code against is not exempt from the discount. This will be clearly stated on the product page. Discount codes are only applicable against full-priced products and exclude all MRG/MTG, limited edition and collaboration models (this list is not exhaustive and may include other models).
Should the problem persist, then please contact our sales team via email at ecom@casio.co.uk or telephone at 0208 450 9131, selecting option 1 when prompted during office hours.