Would it be possible to use the voucher in the same way as a 2-4-1 ie. book the outbound at -355 days and then call later when the inbound becomes available to utilize it as a return? We have a voucher each and unlike the old Lloyd's vouchers which we could book 2 x one way outbound and then 2 x inbound later we can only use these ex UK, so will have to book 2 x returns on different PNRs.