Hello @samuel
Welcome to the LastPass Community. I am sorry to hear you want to cancel your subscription, you may do so by following the steps outlined on the link below:
https://support.lastpass.com/s/document-item?bundleId=lastpass&topicId=LastPass/cancel-premium-plan.html&_LANG=enus
Please let us know if there is something else we can do for you.
Greetings!
Heyner | Customer Care