i downloaded the app to explain which buzzer it was etc and also left my phone number AND wrote that they can leave my package with any neighbour. I was in when they 'attempted' to deliver, I phoned dpd and they said they had no notes of the instructions I was given, she left instructions and said they would come back 'later this afternoon' and of course, they have been back. My boyfriend also ordered something which was being delivered by dpd and they 'attempted to deliver' on two days, but 'couldn't get access to the building', and he ended up having to get his parcel from a shop. Most of the things I order are from amazon and thankfully, they usually don't use dpd, but dpd are consistently terrible. All other delivery companies ring the doorbell, but this doesn't seem to be part of their 'expertise'...