To maintain your current tier or even reach a higher one, it's important to regularly collect or redeem points. However, if you do not collect points or redeem them for a full year, your points will expire. In this case, you will automatically be downgraded to a lower tier. This means that both the expiration of points and the downgrade will occur within the same one-year period. So, make sure to regularly collect or redeem your points to keep your current tier!