Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I'm very unhappy

I'm very unhappy about this product, especially the way Amazon handling my return. The way you promoted this item was very misleading. You bundled this item with WD MyBook hard drive together (I ordered this hard drive), but actually this case is not for that hard drive at all, and the dimension you presented was wrong. I returned the item, but Amazon deducted the return postage, I believe it is not fare. I wrote two emails to your customer service, but not hearing you back for a week.I used to trust your company, but now I have to re-evaluate Amazon.