I confirm that your subscription is cancelled and will not be charged indeed.
For infos, you can cancel a trial in 2 ways, all in self-service:
– Connect to your WPSOLR account at https://admin.wpsolr.com/#/signin, and delete your subscription/account. It will automatically cancel your subscription renewal in the 2checkout billing, and delete your license activation.
– Connect to your2checkout client portal account (link included in 2checkout order emails), and cancel the automatic renewal. Your license activation will continue to be valid until the trial expiration date.