I've been a software engineer my whole career and a web developer for 20 years of that and I cannot for the life of me figure out this shopping cart. I cannot get it to give me more than one case free. Like I said, I'm retail challenged so there must be something I'm doing wrong, but I cannot figure it out. I have zero patience for this kind of stuff. What am I doing wrong?

I've got 10 minutes left before i have to leave for a funeral for the rest of the day. I'm afraid I'm going to miss out on this deal. Oh well.