In the last week I've had two deliveries from DPD that have had to be redelivered. This isn't the first time. I work from home. I have a doorbell and a dog that barks incessantly when the door bell rings. The doorbell can be heard throughout the house and similarly if anyone knocks too. And yet both times the card was pushed through the letterbox for redelivery. I have no trouble with any other company or royal mail deliveries so I can only assume they have no fingers free with which to press the doorbell (that big button by the front door) or their hands can't form a fist shape to knock? It makes one wonder if they're behind schedule or on commission for redeliveries?