Check these
- Pending payment. If you see "Your purchase is being processed", wait a few minutes.
- Internet. A network error stops the app from checking Google Play.
- Google account. You must use the account you paid with.
- Billing service. If you see "Billing service is currently unavailable", try again later or update Google Play.
- Already subscribed. "You already have an active subscription" means Pro is already on this account.
- Close the app completely and open it again.
Still stuck?
Send a bug report from Settings > About with your order number. Never share your payment card details.