I suspect I already know the answer to this, but here goes...
I've booked a ticket from KBV to BKK on one of the TG "Hot Deals" fares (which is W, I think), but I've realised I booked the wrong date. Has anyone ever had any luck changing a W ticket or is it just a case of having to cancel and buy another one?
I only bought it a couple of hours ago if that makes any difference.