Poorest delivery service

Have been a customer with this company for over 10yrs and for to place an order schedule for delivery within 5days and over 21days I never got my orders. I have to send several emails only to be told my contact details is not right ?and this same contact have been using over the year which never changed ! The courier company previously know as Dawn wings always does there delivery,called them up aswell but also getting bull stories,I dont know if have been scanned now ! but if they got my payment and refuse to deliver in the stipulated time. they better let me know so I dont put my mind.