No benefit of Mileage Plan membership - including mileage credit, award travel, upgrade certificates, companion certificates, and elite status nominations - may be sold, purchased, or bartered, except to the extent permitted through Points.com. Mileage, certificates, tickets, or other benefits of Mileage Plan membership that are sold, purchased or bartered, and award tickets or Miles that are obtained from any unauthorized source (including travel agents, travel arrangers and unauthorized brokers), are voidable, in Alaska Airlines’ sole discretion. Attempts to purchase, sell or barter these products or benefits shall be considered an act of fraud against Alaska Airlines. The member and/or the traveler shall be liable for the full, unrestricted value of awards issued as a result of improper or fraudulent transfers or otherwise in violation of these Conditions of Membership. Alaska Airlines reserves the right to deactivate the Mileage Plan account of any member involved in such activities until liability is fulfilled.