So in case, the draw isn't today my IELTS expires Aug 18 and the next IELTS date is Aug 17. My score right now is 480 and I do not know what to do since result takes 13 days and I won't get the new result in time for the next draw. What should I do? Stay in the pool and if I get the ITA do I tell them I need to update with new score??
I think you will be just fine. With a 480, if there's no draw today, there should be one within the next week before your score expires.
If I'm not mistaken, once you get ITA, everything is frozen.