I've got a hard drive coming today, and according to the tracking page, it is on the Van for delivery.
However I've not received an hour's ETA windows. The Text normally comes before 9am, but I've received nothing. The last time DPD failed to give a time slot they didn't bother turning up even though the item was supposed to be on the van for delivery.
(The Weather can't be blamed, there's little snow here, and I'm on the A55 as is the depot, so there's no reason why they couldn't get here.)