Why did the courier not call me?

The couriers receive agreed remuneration for each parcel they deliver. DPD couriers are the employees of our contracting carrier and it is in their interest to deliver the parcel. However, they are not obliged to call the consignee (be it a Czech or a foreign number). On the day of delivery, we send an SMS and email to consignees of DPD Private service parcels with the time window of the parcel delivery by the courier.