Afew weeks ago two items were supposed to have been delivered by 18.31. DX tracking showed they were approximately 10 minutes from my home at 17.29 but nothing was received. Reference to their tracking service at 19.15 stated "item out on delivery vehicle" but the tracking history contradicts this, advising both items were returned to the Bristol Service Centre "for storage" at 18.40 (9 minutes after they were supposed to have delivered to my address). Three weeks later, It has happened again. This time I have waited at home for the same DX courier to collect a parcel from my address. I have been following the progress of the courier throughout the day until, at 15.25, the tracking service states the collection has been "rebooked for my preferred date". My preferred date was today and I have never suggested any alternative date. I tried complaining via the DX telephone service but it does not appear to provide the opportunity to do so. Absolutely appalling service.