How to upgrade or downgrade your subscription
Go to “My Account > My Subscription” and click the “Upgrade or Downgrade” button.
Select new subscription and click the “Sign up now” button.
Click the “Proceed to checkout” button on the next screen.
Make sure your Billing Details are up to date and click the “Sign up now” button.
Once you see the order confirmation message, you can click the site logo to go back to home page and continue studying.