Amarex is the worst company for international courier services

Amarex is the worst courier service ever, they inform clients about any delays or issues, my product has been stuck at customs for eyelashes and face mask, products that are actually know, it’s been stuck for 2 weeks to verify them with SHEIN, I just SHEIN can cancel using amarex for our products and use Buffalo as they understand that products need to be delivered, and tracking becomes useless if there is no direction or change? Are they even working at amarex, they are literally useless!!!