My business relies on slick performance in my supply chain both to our premises where we fix, laptops, phones and PC's and from us to our clients.

DPD consistantly fails us through laziness, poor support and staffing issues.

Again today I get an email, 'Your parcel is delayed due to unexpected issues in your area' (code for we don't have enough staff).
Only a handful of DPD staff do their jobs, most don't take any measures to find you if they are lost and regularly don't bother at all.
It's pretty much garanteed if you are expecting a parcels on a Friday.
It's early blow day for DPD staff. Despite posting pictures of my premises, publishing a phone number in the App that both I and they can see, 50-60% of all my parcels go undelivered at the correct time or often day.
Even though the door to our business is wide open, and there is a maned reception, we still get a 'sorry we missed you' 30% of all parcels.
Who on earth is managing this shambles?