If your subscription is with the Apple iTunes Store, you can try upgrading yourself with an in-app option.
If you are not using an iPhone, please see Subscription has been downgraded
This means you may need to try "Restoring Purchases" inside the app to re-connect your Subscription to your App. As a quick note, we can't make any changes to iTunes App Store subscription billing cycles, and cannot issue refunds for them. This all must be done with the iTunes App Store directly.
Here's some instructions for how to restore purchases:
1. Tap the icon in the top left of your screen. This will take you to your account information page.
2. Tap "App Settings"
3. Tap "Restore Purchases"
Screenshots for reference:
If this does not work, please click this link.
If you need further assistance, please reach out to us