Whatever tier you achieve in a calendar year (ex. Jan 1, 2021-Dec 31, 2021), you can keep for a total of 12 months. After this 12-month period is over and you have not made a purchase, your account will reset to 0 points.   For example, if you spend $600 and you enter the Obsessed With Scent tier on March 3rd 2020, you keep your points and remain in this tier until March 2rd 2021.