PlayerPrefs.DeleteKey() doesnt work.

I have been in unity for about 2 years and im encountring t$$anonymous$$s problem. W$$anonymous$$ch the player prefs key just wont delete.

if anyone can point me out what im missing it would be awesome.

 w$$anonymous$$le (PlayerPrefs.GetString("codes." + counter) != "")
         {
             if (PlayerPrefs.GetString("codes." + counter) == c.nameText)
             {
                 string nameS = PlayerPrefs.GetString("codes." + counter);
 
                 PlayerPrefs.DeleteKey("codes." + counter);
                 PlayerPrefs.DeleteKey(nameS + ".name");
                 PlayerPrefs.DeleteKey(nameS + ".quantity");
                 PlayerPrefs.DeleteKey(nameS + ".prefered_quantity");
 
                 for (int i = 0; i < c.codes.Count; i++)
                 {
                     PlayerPrefs.DeleteKey(c.nameText + ".codes." + i);
                 }
                 PlayerPrefs.Save();
             }
            counter++;
     }

     List<string> codes = new List<string>();
     foreach (string s in c.codes)
     {
         codes.Add(s);
     }
     Cell c1 = AddNew(name, "213", quantity, prefered);

     foreach (string code in codes)
     {
         c1.AddCode(code);
     }
     Save();

Save function :

 public void Save()
     {
         int counter = 0;
         foreach (Transform t in table)
         {
             Cell c = t.GetComponent<Cell>();
             PlayerPrefs.SetString("codes." + counter, c.nameText);
             PlayerPrefs.SetString(c.nameText + ".name", c.nameText);
             PlayerPrefs.SetInt(c.nameText + ".quantity", c.quantityI);
             PlayerPrefs.SetInt(c.nameText + ".prefered_quantity", c.preferedQuan);
             for (int i = 0; i < c.codes.Count; i++)
             {
                 PlayerPrefs.SetString(c.nameText + ".codes." + i, c.codes[i]);
             }
             counter++;
         }
         PlayerPrefs.Save();
     }

im probably an idiot who cant see the problem