Below is a copied message from Air Canada regarding the travel vouchers:
Dear Air Canada customer,
We are happy to send your Air Canada Travel Vouchers with a combined value of 2483.96 USD, split across multiple Travel Vouchers for your convenience and security. Each voucher is fully transferable, can be used multiple times and will never expire.
For your protection, a separate email will be sent with the four-digit pin code needed to book a flight or associated service online at www.aircanada.com, or when you call Air Canada Reservations at 1-888-247-2262 (for international and other numbers, visit www.aircanada.com/othernumbers). If you would like to book an Air Canada flight with your travel agent, please contact them directly.
You can also use your voucher to book a flight and hotel package to Mexico and the Caribbean only (excluding group reservations.) Visit www.aircanadavacations.com to book.
For more information about your Air Canada Travel Voucher, or to check your balance, visit www.aircanada.com/actv
*****Pin number is required to use voucher. PINS along with voucher number will be provided upon purchase. Can be booked electronically or with an Air Canada Agent.