求翻译：您好：在我退货之前需要明确2个问题。1.你们是否对发错的鞋展开过调查，承认你们确实发货存在错误问题。否则我担心我的鞋退回后，你们矢口否认，到那时我连基本的证据都失去了。2.如果你们承认发货错误，希望由你们联系UPS上门取货，运费可以在你们收到货后付给UPS。UPS有收件方支付运费业务。因为我们支付运费很贵，UPS说按原包装退回要120EUR左右，你们是生意伙伴，不会收取那么高的运费。期待你们的回复，谢谢！是什么意思？

Hello: two questions need to be clear before I return. If you commence the wrong shoes survey, admit that you really shipping errors. Otherwise, I am worried that after I returned the shoes, you have denied, then I could not even basic evidence lost. If you recognize the shipping error, I hope you c

Hello: I need to be clear before refund 2 issues. 1.Do you have to have the wrong shoes started to admit that you do indeed shipment survey errors. Otherwise, I am worried about my shoes after returning, you flatly denied it, then I go back to the basics of evidence was lost. 2.If you admit that shi

Hello: I need to be clear before you return 2 questions. 1. whether you are on the wrong shoes conducted investigations, admit you did shipping error issue. Otherwise I'm afraid my shoe after returning, you deny, then I even the basic evidence is lost. 2. If you acknowledge delivery errors, want to