public async Task<Model.RootObject_Chat> GetFAQ_PastIssues()
        {
            answere = new Model.RootObject_Chat();
            try
            {
                UserId = UtilityClasses.Account.UserId;
                String url = UtilityClasses.Network.URL_HOST_MOBIKWIK + UtilityClasses.Network.URL_PAST_ISSUES + "?uid=" + UtilityClasses.Account.UserId + "&pwd=" + UtilityClasses.Account.Password;
                url = UtilityClasses.Network.addParamToUri(url, "disablecache", Environment.TickCount.ToString());//To disable caching in Windows OS 
                sc = new UtilityClasses.ServerCall();
                string content = await sc.GetjsonStream(url);

                answere = JsonConvert.DeserializeObject<Model.RootObject_Chat>(content);

                UtilityClasses.Account.KEY_TICKET = new Model.RootObject_Chat();
                UtilityClasses.Account.KEY_TICKET = answere;
                return answere;

            }
            catch (Exception ex)
            {

                //List<Parameter> Params = new List<Parameter>();
                //Params.Add(AccountFunctions.createParameter("Location", "ViewModel FAQ PastIssues"));
                //Params.Add(AccountFunctions.createParameter("Method", "GetFaq PastIssues, Error:" + ex.Message));
                //FlurryWP8SDK.Api.LogEvent("FAQ Exception", Params);
                return null;
            }

        }
        public async Task<int> CloseTicket(Int32 id) // check by server
        {
            String url = UtilityClasses.Network.URL_HOST_MOBIKWIK + UtilityClasses.Network.URL_REPLY_TICKET + "?uid=" + UtilityClasses.Account.UserId + "&pwd=" + UtilityClasses.Account.Password + "&action=close&id=" + id;
            sc = new UtilityClasses.ServerCall();
            string content = await sc.GetjsonStream(url);
            answere = JsonConvert.DeserializeObject<Model.RootObject_Chat>(content);

            UtilityClasses.Account.KEY_TICKET = new Model.RootObject_Chat();
            UtilityClasses.Account.KEY_TICKET = answere;
            if (answere.failure == false & answere.description.Contains("Closed"))
                return 1;
            else
                return 0;

        }