Pimpaphon, I would like to let you know that, after reviewing the circumstances of your case, I've reversed the charge for this purchase. In ten business days, a credit of 9.99 USD should be posted to the credit card that appears on the receipt for that purchase. This is an exception to the iTunes Store Terms and Conditions, which state that all sales are final.
I would request you to contact the developer of this app, "Disney", for the further assistance to resolve this issue. The developer's website is below.