Thefunkyfrench
Hi,
There is no problem if you are working at the moment,don't stress and don't worry about this,you can tell them that you'are working at the moment alot of the condidates were with me in the final interview worked.Don't worry about this after your FI if you passed you will receive Golden Call they will ask you to resign and be ready for joining.
Now you have to prepare your self sleep well,because it will be along day and busy day don't panick and beeeeeeeeeeeeeee your self this is my advice to you don't stresse.take it easy.
good luck,and I hope to hear good news from you.