SetActive not working?

I have a buy button that works with decreasing my money but when I click it the button doesn't go away I have had the setactive command in the if statement like below and in its own separate onclick function and in the void buy but outside of the if statement any ideas on what's wrong

Code (CSharp):

1. public static int moneyAmount;
2.     bool lvl5 = false; //Level is locked/unlocked
3.     int lvl5cost = 10;
4.     public GameObject lvl5btn;
5.  
6.     public void Buy()
7.     {
8.         if (moneyAmount >= lvl5cost)
9.         {
10.             moneyAmount = moneyAmount - lvl5cost;
11.             lvl5 = true;
12.             lvl5btn.SetActive(false);
13.         }
14.     }
15.  
16.     public void ButtonClicked()
17.     {
18.         lvl5btn.SetActive(false);
19.     }

 

Are the functions connected to the button in the inspector?
Is the lvl5btn correctly assigned?
Is it possible some other script is immediately reactivating the buttons?

 

ok I figured it out I didn't have the gameobject selected in the inspector script