I lost my Postcard, how do I unlock my Math Wizard games?

If you can't find your postcard but need to unlock your Math Wizard games, please follow these steps:

1. In the top left corner of the screen in Sky Castle, tap the settings (gear) icon;
2. Next, tap “Lost postcard” in the bottom left;
3. Lastly, select the name of the Math Wizard box you purchased.

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