How To Write A Lawn Mower Service Termination Letter . Include alternative contact details if you are canceling a phone service. If it is related to the employees’ performance, advise them if they are willing to get an alternative. Termination Letter How to Write (Templates + Examples) from www.docformats.com Its objective is to nullify the service provision agreement in a formal and respectable manner. I regret to inform you that i'm cancelling my service contract with you under the name of [xxxx]. Here is a good sample regarding the same.