thanks!
I just sent an email to BA, I really don't want to deal with this agent ever again. I think they are trying everything they can to get out of it, as they have to initially fund the discount. They also have promised all 10 tickets would be cancelled as 8 were cancelled by BA because of the mistaken fare. I have just logged in to see two tickets are still active (paid at full price). We don't want to travel separately so they said they'll cancel all 10 tickets, but clearly they haven't and still waiting for refunds. The lies continue.