You may change your subscription plan at anytime. Please follow these steps to access the 'change plan' section.
1. Click your account email address in the upper right corner.
2. Then select "Settings" in the menu.
3. In the menu on the left side select "Billing".
Your company's current subscription plan will be listed under "Subscriptions". To upgrade or downgrade your subscription package, click the menu on the right side and select "Change Plan".