public ActionResult ActivatePremium(int productid)
        {
            if (Session["Login"] != null)
            {
                gelen = (AppUsers)Session["Login"];
            }
            else
            {
                return(RedirectToAction("Index", "Home", new { area = "" }));
            }

            if (gelen.Status.Value == 3)
            {
                productManagement.ActiveProductPremium(productid);
                return(RedirectToAction("Premium", "AdminPremium"));
            }
            else
            {
                return(RedirectToAction("Index", "Home", new { area = "" }));
            }
        }