Hi, the same happened with me, my items arrived in NZ last week and I got the invoice for the Goods Examination Fee.
I contacted MAF and they said their charges would probably be about $150 for the 15 items I sent - as opposed to the $260.50 that Sevenseas are charging me. I contacted Sevenseas to see what they had to say and was fobbed off to be honest, she just kept saying that's how much they've been told to charge people - very helpful - not! She did say that they have dropped their prices to reflect this charge though - hmm.
I think we just have to suck it up and pay to be honest