thank you again, guys! i talked to a very nice gentleman from mainfreight and he said he's going on tuesday to the customs at the airport for some jobs and he will look closer into my issue and come back to me. in the meanwhile, he gave me a couple of phone numbers from customs and nzpost and he said something similar to what you guys said: or talk to the team leader and/or in the last cast make a complain to the right organ.
i don't blame the guys working at customs or nzpost. i blame the ones who make the laws and train them (or do not train them)...
MFG
Bookmarks