diff --git a/booking.emails.inc b/booking.emails.inc
index 0c05239..aae67f0 100644
--- a/booking.emails.inc
+++ b/booking.emails.inc
@@ -390,11 +390,12 @@ function _booking_promoted_from_waitinglist_email($nid) {
 		$params['headers']['Bcc'] = BOOKING_EMAIL_DEV_NOTIFY;
 	} 
 
-	if ($tokens['payment-required'] == 0) {
+	if ($tokens['payment-required'] >= 0) {
 		watchdog('booking_debug', 'This person has fully paid so sending Not sending promoted-from-waitinglist-fullypaid email.');
 		$message_body = variable_get('booking_email_waitinglistpromotion_fullypaid');
 	}
 	else {
+		watchdog('booking_debug', 'This person has an outstanding balance of ' . $tokens['payment-required']);
 		$message_body = variable_get('booking_email_waitinglistpromotion');
 	}