Custom Cancelation Rules for WooCommerce Subscriptions

Use case:

Annual subscription but billed monthly. I want customers to be able to cancel at any time (for peace of mind), but for the effect to follow rules set by me.

For example I cancel two months into my subscription (billed monthly), so I will still have to make 12 payments but after the subscription will cancel itself. Currently the customer who wishes to cancel has to login after the 12 payments are made and cancel in time before there is another payment deducted from their account.

Customes unhappy with this demand instant cancellation, contacting me and I have to do it manually which is not ideal.