They really can't do much that isn't illegal to help out with customs duties, of course you will pay some but if you really want lowered fees just buy locally. It might be a little bit more costly but you wont have to worry about fees like these. If it was actually your first time you should've just ordered one miner to test how much the fees really would be if you wanted to buy more. Doing so all in one transaction is pretty risky seeing as you didn't know how much fees were.