public JsonResult ApplyCoupon(String code)
        {
            String msg      = "";
            var    custm_id = SessionData.StripeCustId;

            msg = !string.IsNullOrWhiteSpace(custm_id) ? StripeServices.ApplyPromoCode(custm_id, code.Trim()) : Constant.STRIPE_ID_NOTFOUND;
            return(new JsonResult()
            {
                Data = msg, JsonRequestBehavior = JsonRequestBehavior.AllowGet
            });
        }
        public JsonResult ApplyPromo(String custm_id, String code)
        {
            String msg = "";

            if (!string.IsNullOrWhiteSpace(custm_id))
            {
                msg = StripeServices.ApplyPromoCode(custm_id, code.Trim());
            }
            else
            {
                msg = Constant.STRIPE_ID_NOTFOUND;
            }
            return(new JsonResult()
            {
                Data = msg, JsonRequestBehavior = JsonRequestBehavior.AllowGet
            });
        }