This is their response "Dear Customer, Thank you for your email. We appreciate your interest in our Sindbad program. Unfortunately, we have discontinued the Tier match option. However, you can still move up the Tiers, as well as earn Miles, by flying with us and purchasing upgrades and other products like excess baggage and seat selection. For more information about the Sindbad program, you can visit our website or contact us, and we will be happy to assist you. We look forward to welcoming you on board soon!"