Try these steps:
Restart the app and check your balance again
Make sure you’re logged in to the same account you used for the purchase, as coins are linked to your account
Make sure the app is updated to the latest version
Still no coins?
Write to us at support@my-drama.com with your User ID (in the Me tab) and a screenshot of your payment showing the date and time, and we’ll check it. We may email you for a few more details, so keep an eye on your inbox.