WHAT DOES EXPRESS STAND FOR?

Waiting since 1 July for my delivery it is now 20-July! Why do I need to call the call centre to track my shipments? Very poor service from DHL. Two shipments were sent, only after I called did I get an invoice - only for the one! The other invoice I still haven't received, despite telling the agent that it was urgent and complaining about the length of time it's taken to get my \express"(LOL) delivery. I will not be using DHL again and wouldn't recommend anyone to make use of them. They're as bad as the post office!"""