Delivery only took place after a written complaint...

Delivery only took place after a written complaint !! Why do you give the place of parking when (man) driver doesn't put it there? We were both at home, saw the driver, and he was gone, but not the package. He would have had two options, a garage right next to the house, or just ringing the doorbell! But neither.
That's why I wrote to DPD in writing, lo and behold, a few hours later the same driver came and parked it in the garage.
We have the best experience with DHL and our postmen, but unfortunately some mail order companies only offer DPD!