I had a good experience with Dx (who are they?) on Friday.
I'd booked a collection for a "No printer required" service (printer playing up) through good old Interparcel but had to bail out a friend whose car had broken down. I contacted the office and was advised "between 1pm and 3pm". I was able to drop the friend off, petrol can in hand and get back in time.
As the collection time approached I was getting a bit anxious - no need - 2.45pm the driver turned up with address label in hand. Sorted!!
Just hope it's as good at the other end on Monday. I'm sure @Oldman will let us know.