Lnat failure

I was supposed to sit my Lnat today, but my passport was expired by 2 weeks. I was told that I have make a new appointment, and when I look at the site it said I have tow ait in a few days to make another appointment. However, once the bookings are open it will be at the end of january which is when my prelims start, but I was just wondering if anyone has any good sources for essays?