That is one thing I find annoying - you can't just sign up for one year; it's a running subscription you have to actively cancel - sometimes by calling them.
Only if the card expires can you - maybe - avoid it without explicitly remembering to cancel before their renewal date.
Remember one year when FT renewed for an expired card - they were able to guess the details on the renewed card because they were mostly the same - only a new expiry date I guess.Seems cards don't change even the cvv when they renew - as a security feature that code is ridiculous.