I know how important It is for you to have these charges rectified. I'm happy to assist you. I have reviewed your case, and reversed the charges for these unintentional in-app purchases from the app,au mobile. within ten business days, a credit of 19.98 USD should be posted to the credit card that appears on the receipe for that purchases. there are several ways you can prevent unintentional or unauthorized purchases on your Iphone. you can disable in-app purchases, disable purchasing completely, or require a password for every purchase. to learn about placing restrictions on in-app purchases, see these pages