Originally Posted by
RandomInternetPerson
You just missed a step. You could have taken 3 of those credits and bought a $300 flight. Now when you cancel that flight you have a $300 voucher and your other $100 voucher that you can use for your >$300 flight.
Would doing this extend the expiry date of the vouchers as well or will the original expiry date of each of that $100 count?