Fedex customs clearance is the worst in the world!...

Fedex customs clearance is the worst in the world! It's been 3 weeks since I sent them customs clearance documents and they are still unable to clear the parcel with customs!! All I hear are excuses and how busy they are.
Their customer support never knows anything and can never find the relevant agent to connect me through for information.
We will never ever use their services again!

AVOID FEDEX AT ALL COST!