public async Task <ActionResult> GetBillWithStatistics() { var accountNumber = new CustomerAccountNumber(ClaimsPrincipal.Current.FindFirst("AccountNumber").Value); var bill = await billingService.Find(accountNumber); var vm = new BillWithStatisticsViewModel { Bill = bill, CalledFrequency = bill.GetCalledFrequency(), SkyStoreChargesValue = bill.GetSkyStoreChargesValue() }; return(Json(vm, jsonConverters)); }