Sorry for the confusion on this one. We're constantly learning how we can make our ads more precise as studios drop in these interesting offers. The way the promotion was supposed to work is you can go to the Ponyo Coupon site, print off the $10 coupon and bring that in to save $10 on the Bluray Combo sku instantly. Then if you bought any of the other 3 Miyazaki DVD titles at the same time, you could save an additional $10. This was only on the first Miyazaki title as Disney limited only to 1 title. The others would be at normal sale price price. It is very difficutl to apply the coupon afterwards if you have already purchased the title. You would have to return your purchased copy and resubmit the sale with the coupon for it to kick in.
