Radio Shack Refusing to honor return policy Internet

On 11/22/12 I ordered an Xbox with free promotional headphones from radioshack.com.  I returned them to my local radio shack store on 11/30/12 (found a better deal).  I opened the shipping box only to confirm both items were there, but I never opened the box containing the Xbox or the package with the headphones.  

The store manager (Oaks Mall, Gainesville, FL), Katie, and employee Mark, explained they could not refund me for returning an online order.  Radioshack.com states that you can return items to a Radio Shack store and provides the steps you must follow in order to do so, unless the packing slip indicates the item must be mailed back.

My packing slip & order confirmation did not state anywhere that this purchase can only be mailed back.  Katie acknowledged that the website is says this but what they can do is  ship my purchase back via her regular Federal Express guys who deliver from and ship to the Ft. Worth TX warehouse for her every day. Then she explained when the warehouse receives the package, they will process my refund.  She provided me the tracking information from the shipping receipt she filled out.  The items were shipped back in the same box they came to  me in.

On 12/4/12 that tracking info confirms the box was received and signed for by R Woods.  However, the only item they acknowledge that was returned were the free headphones.  Radioshack.com says b/c the Federal Express shipping receipt lists the weight as too light for an XBOX, they only refund they processed was $0 for the free headphones.

Katie confirmed to me that she ALWAYS ships back to the warehouse listing the weight as 1 pound, b/c the weight doesnt matter b/c they are using their own Federal Express delivery account.  I returned my purchase unopened to Radio Shack.  Two Radio Shack employees confirmed this.  They owe me $180.19.  Fair warning if you elect to patronize this company.