If you want to upgrade or downgrade your monthly membership head to the My Account >> Memberships >> Details to view any upgrade or downgrade options
On your membership detail page, you will see the options for upgrading and downgrading your membership.
After selecting Upgrade or Downgrade, you'll be redirected to a final payment page.
Upgrades start immediately and you will be credited with any overpayment from your previous bill.
Downgrades start at the end of your current billing cycle. The membership you're upgrading/downgrading will be canceled for you as part of this process.