public ActionResult GetBalance(GetPhoneModel model)
        {
            var rnd = new Random();
            Thread.Sleep(rnd.Next(2000));

            return Json(new { Balance = rnd.Next() });
        }
 public ActionResult GetPhone(GetPhoneModel model)
 {
     Thread.Sleep(500);
     return Json(new { Phone = "1234567" });
 }