Originally Posted by
TerryK
Refund value is calculated by deducting one way fare from total. In your case, you will end up with a negative refund value.
Is this true specifically because it is a refund? Because when I've canceled a non-refundable after taking the outbound, I've been given a credit for the remaining segments (typically half the fare paid, not the fare minus the one-way published fare). If that is true, it would make sense to book it as non-refundable and take the credit.