public ActionResult RemoveCoupon()
{
var couponid = Request["couponid"] ?? string.Empty;
long tempid = 0;
long.TryParse(couponid, out tempid);
CurrentCart.RemoveCouponCode(tempid);
HccApp.CalculateOrderAndSave(CurrentCart);
return(Redirect(Url.RouteHccUrl(HccRoute.Cart)));
}