INCORRECTLY ORDERED PRODUCTS. With 2000 plus printer cartridges in our range and the many and varied product codes and printer models, incorrect orders can occur. TPC will credit an incorrectly ordered product providing it is within a month of invoice date and goods are returned in original packaging unopened,undamaged or defaced. Please email us to request a Return Authorisation Number. Please use different packaging for returns so as the original box is not marked with couriers labels, stickers or tags. Incorrectly ordered goods will incur a 10% restocking fee.