diff --git a/src/storefront/views.py b/src/storefront/views.py
index 8cc2ef4..e8c4ed4 100644
--- a/src/storefront/views.py
+++ b/src/storefront/views.py
@@ -156,9 +156,9 @@ class CouponApplyView(FormView):
     def form_valid(self, form):
         today = timezone.localtime(timezone.now()).date()
         try:
-            coupon = Coupon.objects.get(code__iexact=form.cleaned_data['code'])
+            coupon = Coupon.objects.get(code=form.cleaned_data['code'])
         except Coupon.DoesNotExist:
-            messages(self.request, 'Coupon does not exist.')
+            messages.warning(self.request, 'Coupon does not exist.')
         else:
             if coupon.is_valid:
                 cart = Cart(self.request)