Unfortunately due to the choice of a sender, I had to experience the service of this delivery company. Every time DPD has something to deliver to me, it's either they don't knock and actually wait for the reply or can't process any changes to the delivery. The speed of processing any request is so slow that you may end up receiving your parcel after 2+ weeks of waiting.
DPD - fix the way you provide the service!
I wouldn't recommend DPD even an enemy!