public static function eraser( $email_address, $page = 1 ) {
		if ( empty( $email_address ) ) {
			return array(
				'items_removed'  => false,
				'items_retained' => false,
				'messages'       => array(),
				'done'           => true,
			);
		}

		$messages       = array();
		$items_removed  = false;
		$items_retained = false;

		$number = 500; // Limit us to avoid timing out
		$page   = (int) $page;

		$subscribers = PUM_DB_Subscribers::instance()->query( array(
			's'       => $email_address,
			'page'    => $page,
			'limit'   => $number,
			'orderby' => 'ID',
			'order'   => 'ASC',
		), 'ARRAY_A' );

		foreach ( (array) $subscribers as $subscriber ) {
			if ( $subscriber['email'] == $email_address ) {

				// Data should not be deleted if the user was left subscribed to a service provider.
				$unsubscribed = apply_filters( 'pum_privacy_eraser_subscriber_was_unsubscribed', true, $email_address, $subscriber );

				if ( $unsubscribed ) {

					$deleted = PUM_DB_Subscribers::instance()->delete( $subscriber['ID'] );

					if ( $deleted ) {
						$items_removed = true;
					} else {
						$items_retained = true;
						$messages[]     = __( 'Subscription information was not removed. A database error may have occurred during deletion.', 'popup-maker' );
					}
				} else {
					$items_retained = true;
					$messages[]     = __( 'Subscription information was not removed. This may occur when no immediate confirmation is received during our attempt to unsubscribe you from our mailing list.', 'popup-maker' );
				}

			}

		}

		// Tell core if we have more comments to work on still
		$done = count( $subscribers ) < $number;

		return array(
			'items_removed'  => $items_removed,
			'items_retained' => $items_retained,
			'messages'       => $messages,
			'done'           => $done,
		);
	}