message: Adds correct value in lambda response
  `sendRes` was incorrectly returning `loyaltylevel` instead of `body`. `loyaltylevel` was not available in this scope and thus would error out.
diff: @@ -13,7 +13,7 @@ const sendRes = (status, body) => {
  headers: {
  "Content-Type": "application/json"
  },
  - level: loyaltylevel
  + level: body
  };
  return response;
  };
  