Just to let you know I tried this deal today (get 3 Kung Zhu playsets for $3.16) and it worked for me. I posted it on my facebook page earlier today and it has mixed reviews online by my readers but well worth the try!
Head to Toysrus online and look up item number 4033538 add 2 to your cart. Then look up 636007 and add 1. Choose store pick up to skip shipping costs and total worked out to be $3.16 with tax for me! Just to let you the know the deal is buy 1 get 2 free - the Kung Zhu items are clearanced out and it appears the highest priced items are the free items!
I also went through ebates for a little cashback : )
Since it was an awesome deal I made a second transaction for other Kung Zhu pieces so in total I ordered 7 pieces for just over $10 (WOOT WOOT). However my first transaction got cancelled. I knew the store had it in store so I reordered and I finally got confirmation via email that I can go pick up both orders in store!
I suggest if they cancel your order, try again! It should say online whether the store has it in stock and the cancellation is simply the store not honoring the deal! I intend to keep one set and donate the other set to Tots for Toys! : )
Come back and let me know how you made out!