There are two things you can do in Sitebulb regarding cancellations.
You can remove and cancel individual user licenses to decrease your overall subscription cost.
You can cancel your subscription outright.
This article deals with cancelling your subscription completely. If you simply want to remove some user licenses, read this guide instead.
Sign in to the Sitebulb Customer Portal
Follow this link or click the Login button on the Sitebulb website to sign into your account.
You'll need to sign in with the credentials used when you first subscribed to the software.
Your Subscription email address may be different from the one associated with your licence, as well as your billing address.
Alternatively, navigate to the Customer Portal from Sitebulb
If you already have Sitebulb open, and you sign into Sitebulb with the same email you purchased with, you can shortcut the previous step.
Head to 'Your Account' and click the blue Manage Subscription button and Licenses. This will sign you into your account without you having to do it again.
View your Subscription
However you log in, you'll end up on a screen that looks like this:
Click the blue View button to view the subscription details.
This will take you through to a big page with all the details of your subscription.
Cancel Subscription
Hit the Cancel Subscription button.
Once confirmed, this will cancel the licenses for all users associated with your subscription.
Please note, that cancelling means that you will not be charged again once your renewal date comes around, and your licenses will expire. Your licenses will still be available to use until their expiration date.