Delivery never took place, messing me around

Card machine was arranged for delivery between 8-10am. I called at 10, they said delivery will have to be rescheduled. Spoke to supervisor and made it very clear my machine has to be delivered by 3PM because I have business to run. Called at 3 delivery never took place - worst courier service, extremely unprofessional and since booking was made on Monday for delivery on Wednesday! Manage your fleet better because you are impacting other peoples business