Make sure plastic protector film has been removed. Don’t use black tape. Have customer send video of them playing if they persist that the game is an issue. Most likely the issue is too much spray. Use Mr. Clean Magic Erasers to get black tape marks off. Next use a damp hot cloth to clean the surface. Once surface has dried thoroughly, spray four or five squirts on each side of game and lightly spread the silicone all over the entire playing surface with a clean soft cloth. The liquid silicone spray IS NOT a cleaner. In rare cases, the puck was scratched up from being used on pavement, etc. Have them purchase a new puck.
