public async Task <ActionResult> Index()
        {
            var activeDebts = debtService.GetActiveDebt();

            foreach (var item in activeDebts)
            {
                CustomerDto customerDto = await customerService.GetCustomerByIdAsync(item.CustomerId).ConfigureAwait(false);

                item.CustomerINN  = customerDto.INN;
                item.CustomerName = customerDto.Name;
            }
            return(View(activeDebts.Select(p => mapper.Map <DebtDto, DebtModel>(p))));
        }