Originally Posted by
friedablass
From past experience you can use any CO voucher for any ticket available on their website - be it refundable or non-refundable. The voucher is used as a form of payment instead of a credit card, western union, etc. Therefore, you can use vouchers to pay for refundable fares.
Great news.
I guess it means only the first rebooking must be non-refundable as the fare rules often stated such.
This makes me wonder if AA voucher works the same way? hmmm...