Many thanks for the speedy replies. I was planning to buy this ticket tomorrow (7 days ahead of travel on 8th October) and something has just come up which means I may have to delay the trip by a week or two, hence my question)
I was under the impression that if I cancelled the ticket, BA would charge me 10% of the ticket value ($1000-ish) as a penalty even if the ticket hadn't been used. Is this the case or is there a way to avoid this ?