best buy Lied about price match guarantee on Nintendo 3DS, claims $170 version is different flint, Michigan

I wanted to buy Nintendo 3DS and when I heard about the price drop to $170 a couple weeks ago, plus those who bought 3DS on or before Aug 11 can also get 20 free games online, I wanted to get one and then price match after the drop to get $80 back.  I asked the employees Monday the 8th, and they assured me they will price match 3DS when they lower the price within 30 days of original purchase date. So I bought them.  Today I went back with the receipt and guess what?  They claim the $170 price is "Gamestop promition only" and that they wouldn't price match that large price drop. I tried their manager, who gave the same excuse. I went to their gaming section and found 3DS system with the new, lower price tag attached.  I showed it to the manager, he claims that it's a different system from the one I got.  Even after I showed the UPC code on the $170 system is exactly the same as my receipt, he still insisted it's different system and not eligible for price matching.

I ended up driving some 30 minutes to a different Best Buy who had no problem giving me $80 back.  OK so one store does it without a problem because the employee there knows about price matching, and they know about 3DS' big price drop.  The employees (all 5 of them total) at the other store are a bunch of greedy and lying scammers who don't want to follow policies when it's inconvenient  I think this Flint area store deserves to be shut down, they gave me grief before such as refusing to price match Toys R Us ad because the store was "too far away to count", when Toys R Us is like 3 miles away, when they gave me a 2 month long run around on non working TV, then claimed they can't fix it because the warranty had expired, despite taking the TV in BEFORE the warranty expired.  Flint area store just wants you money, money, money!!! For anything else, it's excuses, excuses, excuses!!!