We are going to purchase our tickets today because of the price increase but we really wanted 7 or 8 day tickets. DH has a friend in Canada who offered to get them for us from Flightcentre but the said you need a Canadian passport to pick them up at DLR. DH's friend offered to trade the vouchers in for tickets when he is traveling to the area next week. Would this start the 13 days to use them in? We don't go til July?