I'm stuck plating the waiting game at the minute. I made a booking 3 hours before the end of the affected window, but used saved card data to make the purchase. I've not had the e-mail yet. My friend who made two transactions in the period, one using a saved card, the other manually inputting details has had the e-mail saying he may have been affected.
When I spoke to Barclaycard - they just assured me I was fully protected, and I didn't need to do anything yet.