diff --git a/askell/client.py b/askell/client.py
index 4fc3bab..b918d33 100644
--- a/askell/client.py
+++ b/askell/client.py
@@ -121,6 +121,10 @@ def import_payment_method(self, user, payment_method_data):
         response = requests.post(self._build_url(path), headers=self._auth, json=data)
         
         return response.json()
-
+    
+    def refund_payment(self, uuid):
+        path = '/payments/{}/refund/'.format(uuid)
+        response = requests.post(self._build_url(path), headers=self._auth, json={})
+        return response.json()
 
 client = AskellClient(ASKELL_SECRET_KEY, endpoint=ASKELL_ENDPOINT)
diff --git a/askell/views.py b/askell/views.py
index 0c31f78..39fc8fa 100644
--- a/askell/views.py
+++ b/askell/views.py
@@ -247,5 +247,5 @@ def post(self, request):
             else:
                 return Response({'status': 'error', 'message': response['error']}, status=r.status_code)
 
-        except Exception as e:
+        except Exception:
             return Response({'status': 'error', 'message': _('Server error. Please try again later.')}, status=r.status_code)
\ No newline at end of file
diff --git a/docker-compose.yml b/docker-compose.yml
index 7b2c3fd..3020aca 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -18,6 +18,8 @@ services:
     ports:
       - "8001:8001"
       - 3001:3001
+    env_file:
+      - .env
     environment:
       DATABASE_URL: "postgres://test_project:changeme@db/test_project"
       PYTHONPATH: "/code/test_project:$PYTHONPATH"