Please follow the instructions below.
 
On iOS: Open Device Settings - Select Woody Puzzle - Select Notifications - Turn off notifications. Read more: https://support.apple.com/en-us/HT201925
 
On Android: Open Device Settings - Select Apps - Select Woody Puzzle - Select Notifications - Turn off notifications. Read more: https://support.google.com/android/answer/9079661?hl=en