I understand why there's a textbook return cut-off...

I understand why there's a textbook return cut-off date, but it's ridiculous that there's not a system in place for people who purchase a textbook after that date has passed. I called 4 days after I purchased a book, before I'd even opened it, to see if you would match an online competitor's price (as your "Best Price Promise" clearly states you do). I didn't even want to return the book; I just wanted a portion of what I paid refunded to match the better price I found, but your associate said it couldn't be done. You've lost the next 4 years of my business just so you could keep my $15 now. This is the exact opposite of good customer service, and such pointless policies will cost you business in the future.