Just taking advantage of DHL's reputation
The phishing would not be so realistic if it wasn't such a common occurrence for packages to vanish, or drivers be unable to spot the "Smallville Welcomes Careful Drivers" sign (then insist you really live in Bludhaven), or "but the street only goes up to number 35" (look around the corner!)...
So far, DHL is the only company who had me resorting to phoning both the Inland Revenue and the Law Society on the same day, trying to resolve the situation.
All the other carriers, just phoning direct or a couple of emails got things reasonably well sorted. I know there'll be a pile of "well, UPS/RM/Whatever-hermes-is-called-now managed to crush my parcel/drown my cat/set fire to my house" but compared to my feelings about DHL...