Function onAfterPointsIncrease in Badging/Leveling/Ranking never called

[eminencecs]

I'm developing a custom plugin for my site. I'm trying to add badges for my users. It award points to user but the it never awards badges. In fact the method onAfterPointsIncrease in Badging/Leveling/Ranking is never called.
I tested with the plugin GamificationPoints. And it works. But when I'm calling $userPoints->increase($pointsType["value"], $options); from my plugin, the observer methods are not called though the increase function is called.

public function increase($value, $options = array())
    {
        // Implement JObservableInterface: Pre-processing by observers
        $this->observers->update('onBeforePointsIncrease', array(&$this, &$options));

        $this->points += abs($value);
        $this->store();


        // Implement JObservableInterface: Post-processing by observers
       $this->observers->update('onAfterPointsIncrease', array(&$this, &$options));
    }

I've no idea why the observers are not triggering the methods onBeforePointsIncrease or onAfterPointsIncrease
Please help