Most Amazon Seller's use the parent/child set-up to allow a customer to select different sizes like small, mediaum, large, etc. We use it to allow customers to choose a $5, $10, $20, or $50 denomination version of our product. I want the $5 denomination to be displayed when a AMZ Reviewer selects it but our $10 product comes up instead. Then the reviwers think I'm scamming them because my promo code is for $5 and I'm trying to give them our $5 for free. How do I change the set-up to select the $5 denomination upfront?