This is the kind of post the forum exists for.

Do you contact the customs office or the carrier first?

A certificate of analysis answers one question and gets quoted as though it answers four.

Personal experience, labelled as such, is exactly right here. Nobody is prescribing.

Be careful reading one parcel as a rule. Two successes build a false model.

If you name a shop here, say whether you are affiliated. First line is enough.

No referral links. Shortened links and tracking parameters are the usual offenders.

Everyone is an expert until the first seizure letter.

The mug is the correct answer and everyone else is wrong.

You have two changes at once here. You cannot attribute anything until one of them moves.