While there is little point in complaining about it, I do sympathise with those who have been doing a full time job, sometimes for several years, and are then given less than a week's notice to get to the assessment and get on a course very soon after if successful.
I accidentally told them an untruth in the interview because I said I had to give one month's notice. I genuinely believed that was the case, but then checked my contract again and realised that it was three.
Thankfully I was given a course almost three months after the assessment, so with a bit of remaining leave etc I managed to make it work. It's a pain, but it can be done. Whether the question in the interview about notice has any bearing on the outcome I have no idea, but when the good news came through (late March) we were told six months was the period within which you had to start a course. Not sure if that is still the case.