DPD Laser - NO SERVICE AT ALL:-(

Bought stuff from Faithful to Nature - who use DPD Laser Courier. Got an SMS 23 June (08:32) with message they are delivering on the 23 June. I immediately said they must phone me. I tried to phone them but that was just a waste of my time. I asked them - via their link - to reschedule the delivery. They phoned me after 12h00 and I said to them I have asked to reschedule the delivery as I am not able to receive the parcel. It is now a day later and NO PARCEL. Maybe I should ask them - when they deliver - to take the parcel back to Faithful to Nature and ask them for my money back???