Your discount does not show in the cart page.
For the discount to be applied, enter your coupon code in the « ❗️Type your discount code here❗️ » field at checkout and click on « Apply » to apply it immediately. Your discount will show in the subtotal. See picture below.
If the coupon code is already automatically entered for you, then you do not have anything to do. In the picture below the coupon code was already automatically entered.
Only one coupon code can be used at a time.
Photo of the first checkout page