I got this by mistake...i no longer want this service...how do i cancel

Are you referring to the account with the username brettyoukel? This account is already a free one and does not have any subscription.

If you are referring to any other Form/account please let us know so that we can make sure that you are not charged again and cancel the subscription.

Guide: https://www.jotform.com/help/341-How-to-Cancel-a-Subscription-and-Downgrade-Back-to-Free

Or, if you would like to delete your account, you can do it on your profile page.  

Guide: https://www.jotform.com/help/527-How-to-Delete-My-Account

Please let us know if you need further assistance. We would be happy to assist you.