xbox one in US box but is a region 2 system

please help! what is my next step. I have a xbox one I purchased bace in 12/20/13. I just went to play a dvd for the first time and it says sorry this is a region 1(usa) disc and cant be played on a region 2(united kingdom) system. I have talked to gamestop where I bought it and Microsoft about this issue. I have receipt and box. SN# matches system, receipt and box label. The box label with barcode and Serial number also has it as EN/es US hdwr and under that for disturbution in en/es US. I talked with supervisor at Microsoft since gamestop was not in error. This is obviously a quality control issue from Microsoft. They say since past warranty, I can send in for exchange for 138.00. I paid 499.99 for it brand new from a gamestop in terre haute IN, besides its not a warranty issue. My xbox one system works perfectly. plays games fine. It just wont play dvds I would buy in USA where I live. This from a multi-billion dollar company. The supervisor said she was unable to do anything not even wave the exchange fee and if I exchange and pay more for the refurbished system, that should already be compatible in the US, that only it only has 90 day warranty.  If anyone knows who else I can contact  email me [Mod Removed] I understand its been two years, but I have never used dvd till 5 days ago. Its Wrong for a company like Microsoft not to make this right!