Staggering incompetence

DSV is used by Discovery to deliver cards. Unfortunately, it turns out that DSV is incapable of following basic instructions. They insist on trying to phone the wrong person even though they've been given the correct name, address and phone number of the correct person. After phoning they send an SMS saying they tried to call and to please use the email address given to arrange delivery. But they don't bother to read the emails sent to that address. I've seen reviews using the term "dumpster fire". It's unsulting to dumpster fires to lump them in with DSV.