Direct Copy Pasta from the other thread:
I just got hit with this one today, apparently my price adjustments for online purchases is what did it. Ironically, I was assured by the BB employees at the time that this wouldn't happen, as it rarely does. The girl at the return counter was perplexed as well.
The items I returned had not even been opened or used, I could imagine if it was an issue of people returning heavily, or even lightly used products, since they then have to sell them as open box items. The real kicker is that two of the attempted return items were from the same order, but they could only take one back. Thankfully, I used my AMEX, and they are aware of this problem as well, so AMEX gave me my money back.