Loyalty codes are not for using on your own orders. They are to give out to friends, family, acquaintances etc. If another person uses your loyalty code they will receive a 10% discount on their order whist you will also receive 10% of the order value worth of loyalty points to your own account - which you can then redeem on future orders. You can find out more about loyalty codes and referral rewards here - http://www.troohealthcare.com/t-referrals.aspx. To find out more about loyalty points go here - http://www.troohealthcare.com/t-loyalty.aspx.