Not that sincere
Limited joining merchants. Set high minimum threshold for withdrawal. Impose fee for withdrawal. All points will be gone if inactive for 2 years. Log in everyday and still consider inactive. Not saying clearly that “inactive” means no purchase made. No notification before points expired. A friend converting his loyalty program from other platform for radar points and all forfeited without prior notice. Complaint being ignored. So think twice, thrice, quad if you want to use.