void LoadMainUI()
    {
        ShopUI.SetActive(false);
        ProfileUI.SetActive(false);
        RewardsUI.SetActive(false);
        RateUI.SetActive(false);
        SettingsUI.SetActive(false);
        MainUI.SetActive(true);

        RegisterCanvas.enabled = false;
        MainCanvas.enabled     = true;

        UsernameText.text = PlayerPrefs.GetString("USERNAME");
        MoneyText.text    = PlayerPrefs.GetInt("MONEY") + " ₹";
    }
 public void DisplayRewards()
 {
     MainUI.SetActive(false);
     RewardsUI.SetActive(true);
 }