Yes! The reward link in your email expires if you do not redeem it within 5 years.
Once the reward is redeemed, it’s subject to the terms of the reward option chosen by the recipient.
In general, US Visa cards (both Virtual & Direct Shipped Physical) expire six months after issuance.
The email for your virtual card will list the expiration, and the physical card will state "VALID THRU" on the physical card.
Once redeemed, Virtual Amazon gift cards generally do not have an expiration date (unless otherwise listed).
Please be sure to check the expiration and use your reward before the expiration date! Once the funds are issued and expired, Curion is unable to issue a replacement reward.