alright bolt this is the last time im telling you this. if you ask about anything that has already been said in this post i will autofail you.
You have to write an essay or a piece of literature ~500 words long. This has to be written now and not something you wrote previously. the topic can be anything not related to tb and not any controversial topics like the London riots and religion (yes you can ask if a topic is controversial before you start). No you cant submit something that you wrote previous to your application. You dont have a time limit so dont post saying "oh im busy" or anything of the sort. You can submit the essay whenever you want to. Yes that means whenever you want to.