How long does it take for my tier to change when I am eligible for the next tier?
Rewards eligiblity is checked on the last day of every month and will consider all purchases made over the previous 24 months that have passed the cooling off period. If the purchase is not included on a particular month, then it will be considered on the following month. After the tiers are evaluated on the last day of every month, qualified members will be upgraded on the 10th of the next month.