Asked for a refund on a dlc bundle I couldnt use. request denied for no reason other than...

I purchased the dragon age inquisition DLC bundle during a sale. After putting my game disc in to start the install process I realized my game disc wouldn't work. I tried for hours solutions online to try to fix the issue. The xbox just refuses to recognize
dragon age inquisition as a game disc and wont install. I figured "oh well, I'll just buy the game digitally for a couple of bucks". I then noticed the only way to buy the game digitally was to buy the "game of the year" edition that came bundled with the
dlc. So I bought it figuring no big deal, I can get a refund for the DLC bundle I bought previously by itself that was useless to me without the actual game. So now I have two purchases of the dlc bundle, One that includes the game, and one that is just
the DLC by itself. I requested a refund for the first dlc bundle I bought by itself that night figuring it would be a smooth process, I showed that I was an actual customer just trying to get the right product by buying the actual pack I needed afterwards
and figured they would give me a refund no problem for the duplicate DLC bundle I accidentally bought first.

Nope. My request was denied because "i had played the game, and they don't offer refunds on games that have been played" I know the game has been played... I'm not asking for a refund of the game that I have progress in. I'm requesting a refund for the
duplicate dlc bundle I had purchased a few hours prior that was useless to me without buying the game. I have two purchases of the same dlc and I'm just trying to get a refund for the 8 dollars I accidentally spent on the first dlc bundle I purchased that
I couldn't use without buying the game again. Any advice on how to go about refuting the refund denial would be greatly appreciated. I love the game, perfectly happy with all the dlc+game.

TL;DR- I just want a refund for a duplicate purchase of the exact same content bought twice within a span of a few hours.

Thanks

-John

:)