UK Mail Non Delivery Service and Giffgaff

UK Mail, part of or owned by DHL do it again.;  Despite my trying to stop them they attempted delivery again when there was no one it.  This time they left a card to prove they had attempted delivery.  They claimed my neighbor was out but that would depend on which neighbor they tried.  In my opinion UK Mail and DHL and probably everything related to them is a waste of time for the general public.  Their service may be good enough for business to business where there will be someone available to take delivery. I have found that I am passing the depot tomorrow in the course of my work so I am able to collect the item but that isn't the point.  They have been paid to deliver and that is what they should do.  The whole experience has left me angry.  I have just looked at the phone ratings on Giffgaff and all the single star scores but one relate to UK Mail and not the phone itself.  I hope Giffgaff will eventually take notice and change delivery companies. Giffgaff offer an excellent product for mobile phone calls and good phone deals but very poor delivery of new phones.;