hide-coupon-for-one-product.php

<?php

add_filter( 'woocommerce_coupons_enabled','ts_hide_coupon_field_on_cart' );
function ts_hide_coupon_field_on_cart( $enabled ) {

	$product_id = 55;
	$cart = WC()->cart->get_cart();
	foreach ( $cart as $id => $cart_item ) {
		if( $cart_item[ 'data' ]->get_id() == $product_id ) {
			return false;
		}
	}	

	return $enabled;
}

Hi
I wonder if you can help? I'm trying to get this to work.
I want to only show the coupon box when the price is more than 19.99 AND its not product id 455821
I can't get this to work. Would you be able to give me any ideas why?

Thanks
Kevin

// START Remove coupon box when price is less than 19.99
add_filter( 'woocommerce_coupons_enabled','hide_coupon_field_on_cart' );
function hide_coupon_field_on_cart( $enabled ) {
	global $product;
//	$id = $product->get_id();
	$product_id = 455821;

	$price = "19.95";
	$cart = WC()->cart->get_cart();
		foreach ( $cart as $id => $cart_item ) {
		if( ($cart_item[ 'data' ]->get_price() <= $price) || ( $cart_item[ 'data' ]->$product->get_id() != $product_id ) ) {
			return false; // dont remove it 
		}
	}	
	

	return $enabled;
}