How can you speak to a person as if it is slightly different it answer is we cannot help yiu

[NanaV]

A delivery man knocked on my door but didn’t read the instructions on the door , but cannot see what he did with the parcel as the camera stopped then.

[Geluk]

Call 3 Cust. Service on 333.

[PeteG]

Hello, NanaV. 

I'd recommend contacting DPD and giving them the delivery reference number. They can normally contact the driver who dropped it off and ask them for details on where they left it. In most cases, DPD drivers need to take a photo of the location where the dropped off the parcel. 

Hopefully they will be able to guide you to it. 

Pete.