public async Task <GetEmployerEnglishFractionResponse> Handle(GetEmployerEnglishFractionQuery message)
        {
            var validationResult = await _validator.ValidateAsync(message);

            if (!validationResult.IsValid())
            {
                throw new InvalidRequestException(validationResult.ValidationDictionary);
            }

            if (validationResult.IsUnauthorized)
            {
                throw new UnauthorizedAccessException();
            }

            var result = (await _dasLevyService.GetEnglishFractionHistory(message.EmpRef)).ToList();

            var schemeInformation = await _mediator.SendAsync(new GetPayeSchemeInUseQuery { Empref = message.EmpRef });

            return(new GetEmployerEnglishFractionResponse {
                Fractions = result, EmpRef = message.EmpRef, EmpRefAddedDate = schemeInformation.PayeScheme.AddedDate
            });
        }