Best Buy terrible sevice experience

[BB3]

Earlier today I was in store #320 in Berwyn, IL. I had a pretty routine speaker return of some Sony B1000s that I purchased as some rear channel speakers (to make system 7.1). They were in perfect condition they just didn't quite fit in with the Infinity center and bookshelves (greatly overpowered). I brought the speakers into the store after 8 days of purchase. The geek squad techs test the speakers and everything works fine. I go over to the customer service line to have my credit card credited and the woman tells me they are not the same speaker. At first I thought she was joking as the model number on the back of the speakers clearly matched. She says...the serial numbers don't match. However, serials were xxxxx352 and xxxxxx353. I ask her to call over the store manager who immediately starts interrogating me as if I am trying to steal something. He then goes as far as to say he is going to call the police if I'm lying. Mind you I came from work and I was in a suit... not that matters but still. I explain to the man that electronic products have the same model number but different serial numbers as this is how the manufacturer or retailer differentiates one persons B1000s from another. After about 20 minutes of arguing with the store manager I finally begin to lose my cool and demand that they open up the same product from the shelf. Of course he refuses....because at this point he is beginning to realize he is an idiot. So I do what any person wanting to prove a point does I bought another pair so I could open the box and explain to him the purpose of different serial numbers. Finally, this joke gets the point and refunds my money for both sets of speakers. Has anyone had this type of experience with BB? Also, does anyone know the number to top tier Customer Service...the $20 gift card they gave me just does not make up for the BS I had to deal with. This store is notorious for shadiness...such as saying online prices are wrong and refusing to price match their own website. Any contact information would be greatly appreciated.