so you paid in USD if I'm right 
the shipping cost itself is a killer if I must say so
myself..
got a response from them, at least they refunding 20% of my
original cd.
anyway i wanted to have a Suzanne Vega collection, i don't have
that cd they mailed me
i guess it's ok. 
Thanks for writing to us at
Amazon.com.
I'm happy to hear you'd like to keep the wrong item "Solitude
Standing" you recently received, and I apologize for any
disappointment you have experienced with this order.
As you requested, to issue the difference between the price of
the two items, I've checked the price of the item "Nine Objects of
Desire" and found that the item is currently only available from
sellers.
So we are unable to obtain the exact price of the item, so
because of the condition in which the item arrived, I'd like to
offer a refund of 20% off the purchase price of this item, or
$2.50.
To accept this offer, just click the link below. When we receive
your response, we'll request a refund to the same payment method
used to pay for the order.