Worst delivery service

I have been waiting for my parcel for 3 weeks now. It has been stuck in polokwane, to be delivered to Thohoyandou for 7 days. I am leaving the country tomorrow and i have not received my parcel. Called aramex, they promised to escalate and i stillhave not received it. When i track it , its in Polkwane since the 19th, its now the 27th and still nothing. It says its out for delivery. Never use aramex. I am now frustrated not knowing what to do to get my parcel. They really dont care about people and have no sense of urgency. What should i do now as they also dont work on weekends?