Your Premier Club membership level will not immediately update after reaching a certain level during the calendar month (based on how many Premier Points accrued). Your Premier Club membership level will be updated on the 1st day of the following calendar month.
For example, if you accrue more than 100,000 Premier Points on June 20th your Premier Club membership level will be updated to Silver on July 1st.
There may be a slight delay of about 0-30 minutes (usually between 12-12:30AM ET) for one's Premier Club membership level to be properly updated on the 1st day of each month. If your Premier Club membership level does not update itself after 30 minutes in the new month, please log out of your account and sign back into your account and the Premier Club level should update.