Removing a discount code

Hi All,

I am trying to switch a product within the cart but when i remove a product and switch it with the new one it still applies a discount code if applied.

I see in the code api you have shopp_add_cart_discount_code is there also a option to shopp_rmv_cart_discount_code?

For instance if i run the code below and i have a discount code 20% off it will applied that percentage on top of my subscription trial period of the product it switches to i really need to remove the discount all together and switch to the other product.

Full code.

function shopp_switch_product () {

    // Get discount code
    $discount = trim(strtolower($_REQUEST['discount']));

    if($discount == 'discover10'){

        $item = shopp('cart','lastitem','return=true');

        shopp_rmv_cart_item($item->_id);

        // get my product
        $Product = shopp_product('Classic - Subscription (10% off)', 'name');

        // Add quantity 2 of My Product to the cart
        shopp_add_cart_product($Product->id, 1);;

    }

}
add_action('shopp_cart_request', 'shopp_switch_product');

Thanks

https://wordpress.org/plugins/shopp/