Not sure if anyone will remember this as I had to get the thread pulled as I had given too much information away. I was accused of not sticking to the order, but any changes had been agreed to.
Just to let anyone who does remember know - I turned up today, the applicant didn't. It got dismissed on this basis but I asked for advice and feel even more strongly that I've not done anything wrong - and will make sure all variations are in writing from now on so there's evidence!
Thanks all that helped.