Originally Posted by
mikeyfly
By cancelling to Voucher and rebooking, you are not changing but starting again. You can work out required amount of Avios by making dummy bookings on BA.com (aware of Peak vs Off Peak) and seeing the different amoutns required
After all our deliberations I noted that the flights in the booking will be post end of August 2021 so the "confidence" rules I guess will not apply?