If the company already is a client or has had a subscription that has been canceled, you can add a new subscription.

Log in here: platform.cobuilder.com/login 

Go to Subscription management.

Choose the subscription and click on Activate.

Accept the Terms and conditions and click on Activate subscription.

You will get a message that the subscription has been activated. Click on Close.

The subscription will now appear as active. You can click on Home in order to go back to the platform where you can open it.