Write to support@mossandglow.app. Tell us your phone model and what the game did. That is usually enough for us to find it. We answer within a few days.
Two ways:
When you sign in and your account already has a save in the cloud, the game loads the cloud save and keeps this phone's own save aside. To go back to it, open Settings → Account and tap This phone's earlier save. The two saves are never added together, so nothing is doubled.
Check your spam folder first. The code is valid for 10 minutes; after that ask for a new one. If nothing arrives at all, write to us and we will look.
If you were signed in, sign in again on the same account and the cloud copy comes back. If you were playing as a guest and the game was uninstalled, the save went with it, unless you had made a backup code. Write to us either way and we will see what we can do.
See the deletion page.
Please include: your phone model, the Android version, the game version (Settings, at the bottom), and what you were doing. A screenshot or a short screen recording helps more than anything else.