Updating Score on Level Change

HI All,

I am having a little trouble with updating the score from level_1 to level_2,

My aim is, once max level points have been reached on level_1 (750) then level_2 loads and the score carries over to level_2(750),

The problem is, when i gain 750 in level_1, level_2 loads fine the 750 points are shown and once the level starts it automatically gains 60 points so the application.loadlevel should stop once i have gone passed 750, as soon as level_2 loads the new score should be 810, it works but still level_2 keeps loading over and over as if i still have 750 points.

My question is how can i stop level_2 from loading over and over again?

here is my script, any ideas?

public class LevelManager : MonoBehaviour {

 public LevelManager levelManager;
 public int score;
 public int currentLevel
 public int Score=30;
 

 private PlayerController player;

 // Use this for initialization
 void Start () {
     player = FindObjectOfType<PlayerController>();
     if (Application.loadedLevelName == "Level_1") {
         score = 0;
         saveScores();
     } else {
         score = getSavedScores();    
     }  

 }

// Update is called once per frame void Update ()

 {  
     
     saveScores();
     changeLevel();
 }
 
 public void changeLevel()
 {
     if (score >= 750 && currentLevel == 1) 
     {

         saveScores();
         currentLevel++;
         Application.LoadLevel("Level_2");
 
     }    
     if(Application.loadedLevelName == "Level_2")
     {
         getSavedScores();    
     }
     
 }
 //possible if the save functionality intreacts with this
 public void saveScores()
 {
     if (score >= 750)
     {
         // setting the score
         PlayerPrefs.SetInt("Score", score);
         
     }
 }
 public int getSavedScores()
 {
     
     int tempScore = PlayerPrefs.GetInt("Score");  
     
     return tempScore;
 }
 
 
 public  int getScore()
 {    
     
     
     return score;
 }
 public void AddPoints(int points)
 {
     score += points;
 }

 void OnGUI()
 {
     GUILayout.Label(score.ToString());
 }

 void OnTriggerEnter2D(Collider2D other)
 {
     if(other.name == "Player")    
     
     {
         Application.LoadLevel(0); //this is on death completely restart game
     }


 }

}