A letter of cancellation is required and/or suggested to end contract or agreement. Cancellation may be required if you agreed to hire a contractor or purchase a product, and then changed your mind. Another instance may be that you have a signed agreement or contract, and you want to cancel before the term of the contract ends. A letter of cancellation formalizes this process by stating your
. intentions in writing. It is also recommended that if a letter of cancellation is being mailed with the requirement for the recipient to sign when received. For more information and a cancellation letter template: http://www.whitesmoke.com/blog/letter-of-cancellation