fix

@@ -185,7 +185,7 @@ class IWABaseView(LoggerMixin, GenericExceptionMixin, GenericAPIView):
         return res.json().get('access_token', '')
 
     def get_q_number(self, iwa_url_base, code, redirect_uri, client_id_base64):
-        access_token = self.get_token(iwa_url_base, code, redirect_uri, client_id_base64)
+        access_token = self.get_token(self, iwa_url_base, code, redirect_uri, client_id_base64)
         headers = {
             'Authorization': 'Bearer {0}'.format(access_token)
         }