Getting all of my store categories

using eBay.Service.Core.Sdk;
using eBay.Service.Core.Soap;
using eBay.Service.Call;
using eBay.Service.Util;

namespace NETSDKSample
{
    public class SDKSample
    {
        private void GetStore()
        { 
            //set your credentials for the call 
            ApiContext context = new ApiContext();
            context.ApiCredential.ApiAccount.Developer = "devID";
            context.ApiCredential.ApiAccount.Application = "appID";
             context.ApiCredential.ApiAccount.Certificate = "certID";
            context.ApiCredential.eBayToken = "token";
            // Set the URL
            context.SoapApiServerUrl = "https://api.sandbox.ebay.com/wsapi";
            // Set logging
            context.ApiLogManager = new ApiLogManager();
            context.ApiLogManager.ApiLoggerList.Add(new eBay.Service.Util.FileLogger("Messages.log", true, true, true));
            context.ApiLogManager.EnableLogging = true;
            // Set the version
            context.Version = "571";
            //create call
            GetStoreCall call = new GetStoreCall(context);
            //get just the store categories
            call.CategoryStructureOnly = true;
            call.Execute();

            //iterate through the top level categories
            foreach (StoreCustomCategoryType cat in call.Store.CustomCategories)
            {
                GetChildCategories(cat);
            }

        }

        private void GetChildCategories(StoreCustomCategoryType cat)
        {
            //get the category name, ID and whether it is a leaf
            long id = cat.CategoryID;
            string name = cat.Name;
            bool leaf = (cat.ChildCategory.Count == 0);
            Console.WriteLine("id = " + id + " name = " + name + " leaf= " + leaf);

            //condition to end the recursion
            if (leaf)
            {
                return;
            }

            //continue the recursion for each of the child categories
            foreach (StoreCustomCategoryType childcat in cat.ChildCategory)
            {
                GetChildCategories(childcat);
            }
        }

    }

}