Automatic Discount is not Applied at Checkout

vretailers
Excursionist
22 0 4

I'm using buy x get y for Spend $50 ,Get a free hoodie. 

When I went to test out the coupon it didn't automatically apply. I assumed it would automatically place the free item in the order after the $50 minimum was reached. 

I am using Venture theme. How can I make the free item automatically appear in cart or checkout with the discount? Do I need to change the code? Please Help