OddDecode

main.cs

using System.Linq;
using ServiceStack;
using ServiceStack.Text;
using System.Net;
using System;
using System.Collections.Generic;
using System.Linq;
private class FowardAirFSCResponse
        {
            public FAFSCs FSCResponse { get; set; }
        }
        private class FAFSCs
        {
            public List<FAFSC> FSCs { get; set; } = new List<FAFSC>();
        }
        private class FAFSC
        {
            public DateTime IssueDate { get; set; }
            public decimal MaxPrice { get; set; }
            public DateTime EndDate { get; set; }
            public decimal EUVSurcharge { get; set; }
            public decimal MinPrice { get; set; }
            public decimal SystemSurcharge { get; set; }
            public decimal DieselPrice { get; set; }
            public DateTime EffectiveDate { get; set; }
        }
    

var pureJson = "{\"FSCResponse\":{\"FSCs\":[{\"IssueDate\":\"02/12/2018\",\"MaxPrice\":\"3.10\",\"EndDate\":\"02/25/2018\",\"EUVSurcharge\":\"33.3\",\"EffectiveDate\":\"02/19/2018\",\"DieselPrice\":\"3.06\",\"SystemSurcharge\":\"19.5\",\"MinPrice\":\"3.05\"}, {\"IssueDate\":\"02/05/2018\",\"MaxPrice\":\"3.10\",\"EndDate\":\"02/18/2018\",\"EUVSurcharge\":\"33.3\",\"EffectiveDate\":\"02/12/2018\",\"DieselPrice\":\"3.08\",\"SystemSurcharge\":\"19.5\",\"MinPrice\":\"3.05\"}]}}";
 
            var jsonResponseDecoded = pureJson.FromJson<FowardAirFSCResponse>();  
jsonResponseDecoded.PrintDump();

packages.config

<?xml version="1.0" encoding="utf-8"?>
<packages>
  <package id="ServiceStack.Text" version="5.0.2" targetFramework="net45" />
  <package id="ServiceStack.Client" version="5.0.2" targetFramework="net45" />
  <package id="ServiceStack.Interfaces" version="5.0.2" targetFramework="net45" />
</packages>