I have a custom template for a woocommerce category page to only display the categories. I have got the system to get a list of the child categories (by using get_term_chi
If the get_woocommerce_term_meta() function does not work for you then you can try the get_term_meta()function instead.
You can get the WooCommerce product category thumbnail with the following code-
term_id, 'thumbnail_id', true );
$image_url = wp_get_attachment_url( $thumbnail_id ); // This variable is returing the product category thumbnail image URL.