Within Teamwork Spaces, you can update the number of users included in your subscription at any time.
Click your profile icon in the top right of your site and select Subscription from the dropdown menu.
Within the subscription area, click the green Update subscription button to proceed with the checkout process and update your team size.
In the checkout area, you can use the Team Members text field, or the team size bar below it, to set the number of users for your subscription.
The pricing calculator will automatically update to reflect the team size you have entered. You can also change between monthly or annual billing here.
Click Select to proceed to the payment details.
Note: You can make changes to your subscription at any time. Your site will update immediately to reflect the changes. When adding or removing users from your subscription, payment adjustments to your subscription will be invoiced/credited immediately.
For more information, see: Updating Your Payment Details