I still have the wave 2 deluxe case in my POL. Decided to inquire about the new pricing and got this email back:
Thank you for contacting us regarding our most recent sale of the Generation Series 02 case. After reviewing your order I noticed that the item(s) in reference were purchase beyond our 7 day sale price matching time frame. Unfortunately due to the length of time that has exceeded our 7 day policy, we are no longer able to provide you with a full sale price refund difference at this time, but I have gone ahead and issue a $20.00 partial refund as a courtesy to you. The reasoning for this discount is due to a high percentage of upcoming assortments from Hasbro containing these same figures.
boom! wasn't expecting the partial refund but woo! may the floodgates open :). Just don't mention this post so they don't close the gates :P