you can ask for the photo, org. invoice of the goods.

来源: 于 2009-10-10 10:54:04 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

if they can not offer those documents, refuse to pay. they need to have something to proov how 4000 came out. you do not need 律师. 律师may take more than 4000.