Wow, so much discussion about how to order. This is how it works, people.
If you ordered via Amazon.de, the item still ships from China. Most of the chinese sellers don’t pay taxes, they specify a low value in the hopes that it passes customs without any taxes.
Customs is not stupid, at least not in Germany. They will ask for proof of payment (Invoice is NOT a proof of payment, it has to be Paypal, bank statement, order confirmation etc.).
Amazon.de A-Z guarantee clearly states that if customs duties/taxes were incurred on a product purchased via Marketplace, the “Seller” has to refund the tax amount to the buyer. So go ahead and pay the import taxes which will be around 20%, send a message to the seller on Amazon with a photo of the receipt for paying taxes. If seller does not refund within 2-3 days, you can claim A-Z guarantee and Amazon will refund.
My XD05Pro is at customs at Cologne, processing since 3 days now.