First of all, we are sincerely sorry for the payment errors.

For iOS (iPhone), since Apple is responsible for all payment procedures, you may need to check with the Apple store before sending requests to us. If you want to cancel the payment, please follow the steps below.

1) Please click inquiries to Apple support, then select iPhone.

2) ① Click iTunes Store, App Store or iBookstore button.

② Check on 'The service is not shown in the given category' and write 'I have a problem for the in-app transactions'

3) If you click the [input] button from the top, you can see the continue button as shown on the picture below. Click the [Continue] button to proceed.

4) Then, click e-mail on the solution page.

5) ① Please fill in the contact information with your name/E-mail.

Also, please check the following issues of the details.

- Device : The device you use (ex) iPhone 4s)

- Application: Gunship Battle

- Transaction Screenshot : order number that had payment errors.

- Reason of chargebacks : fill in details (The payment was processed, but I did not receive my Items)

② When you fill out all the contents, please click [Continue] button to complete the application.

※ If you have difficulty with confirming order number, please check the link below.

- iTunes Store/ Mac App Store: Purchase record / shortcut to order number reference page.