For me I got it first time. I replied within 5 minutes of receiving the email. It may be worth noting I stated a preferred slot, but said I would be available for any. They replied the next day with a slot (which wasn't my preferred!)Same here, what time are you doing it? 3rd or 4th time of trying for me, I replied within 5 minutes, luckily they sent it earlier than they 'usually' do otherwise I'd have missed it again due to work. I was in the kitchen about to head out and just so happened to check my emails.