Dhl slow service

Doing business with DHL has been great but currently I’m appalled with their service. I have been told my parcel is awaiting to be captured since Monday. An agent has been assigned to it already. It’s a process that takes less than 24 hours but however nothing has happened 5 working days later. I have been sent from pillar to post. Several consultants have promised me that today since Monday and here we are nothing has transpired yet delivery is supposed to be today. I have received the other parcel that arrived the same day with this one. It hurts to pay loads of money for a world class service yet you experience a lot of delays. This causes small businesses to suffer a lot.