A woman brought a very limp duck into a veterinary surgeon. As she laid her pet on the table, the vet pulled out his stethoscope and listened to the bird's chest.
After a moment or two, the vet shook his head and sadly said, "I'm sorry, your duck has passed away."
The distressed woman wailed,
"Are you sure?"
"Yes, I am sure. Your duck is dead," replied the vet.
"How can you be so sure?" she protested. "I mean you haven't done any testing on him or anything. He might just be in a coma or something."
The vet rolled his eyes, turned around and left the room. He returned a few minutes later with a black Labrador.
As the duck's owner looked on in amazement, the dog stood on his hind legs, put his front paws on the examination table and sniffed the duck from top to bottom. He then looked up at the vet with sad eyes and shook his head.  The vet patted the dog on the head and took it out of the room.
A few minutes later he returned with a cat. The cat jumped on the table and also delicately sniffed the bird from head to foot. The cat sat back on its haunches, shook its head, meowed softly and strolled out of the room.
The vet looked at the woman and said, "I'm sorry, but as I said, this is most definitely, 100% certifiably, a dead duck."
The vet turned to his computer terminal, hit a few keys and produced a bill, which he handed to the woman.
The duck's owner, still in shock, took the bill. "£1500!" she cried, "£1500 just to tell me my duck is dead!"
The vet shrugged, "I'm sorry. If you had just taken my word for it, the bill would have been £100, but with the Lab Report and the Cat Scan, it's now £1500."

I'd be straight on to Trustpilot. They hate bad reviews more than anything else.

Yes, I've done that when Miele messed me about with a warranty dishwasher repair.  It does get attention, and results.  Also, if you can work Twitter (which I can't), that's another avenue for a very public complaint.

Time is what they gain.  We live on the 4th floor of a block of flats in the middle of a seaside town which was quite busy this afternoon.  He would have had to park up the road and walk back and he obviously didn't didn't want to waste time doing that.  The photo he took suggests he parked opposite to take the picture and simply drove off.  We actually saw the van go up the road and even thought of chasing it by car.  But that would have been difficult as by the time we got our car out on the road the driver could have been anywhere.  Hermes and Parcel Force are hopeless too.  Amazon is much better.  We tried reporting the driver but it was futile.  They are just not interested. 

You should report him to DPD.