Damn that sucks
Had something similar happen to me except the "someone else paid the duties" part (like wtf).
Package said delivered but i never received shit. No notice card nothing. Called Canada Post, went to my post office, went to New West mail center, talked to the supervisor there and they all gave me the "but it says delivered" crap
Waited a few more days, doorbell rings and the Canada Post mailman delivers it to me...
Hope you get your parts!