May I suggest you email CFO setting out your situation, so that you will have a copy of what they require, should anyone later question it.
I am British but when we got married I had been living in Spain for many years and thus my wife was coming to live on Spain.
We attended the seminar on the day for Spain, but she was told as I was British she had to attend on the day for UK, which she subsequently did.
When we went to get the exit stamp, they said she should have done the Spanish day.
Fortunately, I had emailed CFO as I was 'surprised' they had said she should do the UK day, as of course it had no relevance. CFO replied that she had to attend on the UK day as I was British. My wife showed the copy of the email reply and finally got the exit stamp for Spain.
