Woocommerce add vat message after price

wc-add-vat-message-after-price.php

<?php
	if ( !class_exists( 'VATMessage' ) ) {
		class VATMessage {
			function activate() {
				add_filter( 'woocommerce_get_price_html', array( $this, 'vat_message' ) );
			}

			function vat_message( $price ) {
					$vat = ' <span class="vat-info">' . __( '(VAT not included)', 'logopedicum' ) . '</span>';

					return $price . $vat;
			}
		}

		$vat_message = new VATMessage();
		$vat_message->activate();
	}