I am from Egypt and I have a product that needs a representative inside China to receive it for shipment to Egypt. How to contact the post office

Dear Sir/Madam,
I have shipped four packages from China Post to Egypt. Their tracking numbers are:
• CP519953064CN
• CP519953055CN
• CP519953016CN
• CP519952047CN
According to the tracking system:
• All packages were handed over for delivery on 10 July 2025.
• On 11 July 2025, the status updated to “on the way to the international delivery company.”
• The latest update shows that the packages have “arrived at the port of destination and are in transit.”

However, when I contacted the receiving company in Egypt that is responsible for handling incoming packages, they informed me that no packages have arrived.

I urgently need clarification on the following points:
1. Where are my packages now?
2. Which company or authority received my packages from China Post upon arrival in Egypt?
3. Please provide an official document confirming that my packages have been successfully delivered to Egypt, including the entry numbers or any reference submitted to Egyptian customs. This documentation is essential for me to file a formal complaint locally and trace my shipments.
At the moment, I do not know whether my packages are delayed, lost, or stolen. I kindly request your urgent assistance in resolving this matter.
Thank you for your cooperation.

I ordered some items from Marshall discount store online 5/22. They gave me a tracking number HYD1100018283QN. The representative will not respond to my messages.