How to correctly use cancelled WooCommerce booking action hook?

[Fever]

I'm trying to make an SQL query to run upon cancellation of a booking, via a custom plugin, updating custom user meta data.

Here's my code:

function wporg_callback() {
global $wpdb;
$wpdb->query("UPDATE usermeta SET meta_value = 15 WHERE umeta_id = 131");
}

add_action('woocommerce_bookings_cancelled_booking', 'wporg_callback');


It's not making any changes.
Is there something wrong with the query? Is the right action not being used?

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