public IActionResult GetServiceCharge(string AccountType)
 {
     try
     {
         float value = _provider.getServiceCharge(AccountType);
         return(Ok(value));
     }
     catch (NullReferenceException e)
     {
         _log4net.Error("NullReferenceException caught.");
         return(StatusCode(500));
     }
     catch (Exception e)
     {
         return(StatusCode(500));
     }
 }