The declaration contradicting the return address is what gets it opened. Same for me with Turkey, unfortunately.

Do you contact the customs office or the carrier first?

Reconstitution arithmetic is only half the problem. The other half is what was in the vial. Not on modafinil but the pattern is familiar.

The pain score conversation is thirty seconds of my life I will never get back, every time.

Fees like that are charged by the carrier, not the state, which is why they are hard to contest. A fortnight in on a seizure notice and it lines up.