Don't use DHL courier service! Terrible service! For an exorbitant fee they promised to deliver a letter from AB to AZ in 3 days (still a long time for express service) but package still hasn't arrived 5 days later! No refund available because we didn't pay even more to guarantee a "time" of delivery. I could have had the letter here quicker by snail mail for $4. Won't ever use this "express" service again!