If it is released for delivery you will be lucky. Otherwise you will get a letter in a week or two and a bill for $45. They will not treat it until it is paid for.
I agree.
Once the tracker states that it is 'Held for Clearance', it will indeed not be coming directly to your door. The magic words you'd want to see are, 'Released for delivery' and/or 'In transit to local depot'.
Because you are required to pay a flat $45 treatment fee, whether it's 500g (in your case) or (up to) 25kg, you will appreciate that it just doesn't make sense to continue to buy it one pound at a time.
My last order (of six pounds) got 'lost' for a month.
On the tracker it indicated that it was 'Held for Clearance' but no letter from 'QTC' (the testing outfit) appeared. After phoning Customs, MPI and QTC and having them each tell me they had no trace of it, I lastly rang NZ Post who opened a 'Case' - to find the missing parcel.
And, in a matter of just a few hours the tracker showed that it was 'In transit to local depot'. It was delivered two days later, opened but UNTREATED.