Overstock.com Sent a defective light fixture I paid $117 for. It was missing parts. Then charged me $137 for a replacement fixture that never came. They took $137 out of my account without my authorization!

I purchased a light fixture for $117. It came missing parts.

i called to get parts sent, lady told me she would send a replacement and when I got it, to send the defective one back.

2 months later I still have not received the fixture and they charged my account yesterday for $137 to pay for the replacement. 

I did not authorize them to access my debit card and why should I pay for the replacement which never even came- on top of the broken fixture. They agreed to refund $117. But they fraudulently charged my account for $137.