Gift Cards: REI Gift Cards can be used online, in stores, or by phone. Multiple merchandise credits or refund vouchers can also be applied online. Member Rewards: REI Co-op Member Rewards can be redeemed toward eligible purchases, but rewards do not apply to excluded categories such as gift cards, taxes, certain services, classes and events. Payment Availability: Payment methods can vary by purchase type and location. Some specialty services have more limited payment options.