"OnProductPurchaseComplete" is never called

[Tiburon]

Hi Everyone
I´m developing a kismet node for the "In App Purchase" (MicroTransaction) for my game, i just copy the example of "CloudMenuMicroTransaction.uc" given here:
http://udn.epicgames.com/Three/MicroTransactions.html

I was capable of bring all the items in the store, and to make work the purchase buttoms, but when the purchase is done, the function "OnProductPurchaseComplete" is never called (but in the itunes store the purchase was made...)

For experiment, i combine "Consumable" and "Non Consumable" items, and effectively when a non consumable was purchased twice, i have the Alert message that i already have purchased that item.

Anyone else with the same problem?

Please help!

[Tiburon]

Nobody has played with microtransactions?

Solid Snake Help Please!