I don't want to cancel a subscription to a service. That is all that I could find with 'How to eliminate/deactivate Ubuntu One account?' Search.
On the Ubuntu One page there is a FAQ with the following: 'How do I downgrade or cancel my Ubuntu One account?'
Which only gives the following information: 'Do you want to either downgrade or cancel you Ubuntu One plan? Both the downgrade and cancel options are available in the Account area. https://one.ubuntu.com/account/ Under 'Services' > 'Your Storage'. Click on the grey "See Details" button next to all the subscription(s) you want to cancel and then click the "Cancel this subscription" button.'
In the TOS it says: ' Cancelling your account. You may cancel your account at any time through the Ubuntu One website. You must cancel your service before it renews in order to avoid billing of the next period's fees to your credit card. You will not be charged at the next renewal date, but Canonical does not provide refunds for any previous billing periods or partial billing periods. We will not charge a fee for cancelling your account.'
Please tell me how to cancel an account. Not deactivate or suspend or disable services.