If you encounter any difficulties accessing the in-game store or navigating through its items, don't hesitate to contact us. Simply click on the "Chat" icon located in the Help Center within the game. Please include a screenshot of the issue you're facing so that we can investigate and assist you promptly.

For any troubles directly with the purchase, we'd suggest checking the following App Store FAQ article:
https://support.apple.com/en-ph/HT203005