DPD have always been awful every time I've used them. They have downright lied to me at times, and on other occasions their driver knocked but was incapable of using the doorbell right next to the door (I live in a flat, as is evident from the address they had, and was nowhere near the front door to hear knocking). dv247 use them, which is a shame because I like dv, but hate DPD, I guess they must be quite cheap.