11月29日买的9398，至今未到。写信去德逊询问，结果直接回信说要退款。我再写信去说不用退款，只是查询状态而已，然后对方又回了一封信，原文如下： I am sorry about this misunderstanding with regard to the whereabouts of your order. Unfortunately, the package is currently not traceable, it happens from time to time, that after the transfer to the transport service, no scan was made. This is for example the case when the address label was easily scratched, unreadable or has even partially dissolved. Normally, we would generate a replacement if the waiting period has expired, but because this item is no longer available from Amazon.de, we have generated a refund, so that you can order this item from a Third-Party seller if you wish to order again. 像这种情况可以投诉吗？ 如何投诉？