How do I write a letter to change my church membership? This is an almost unanswerable question without context.1. In the sample letter, fill in your personal information. _____ Please withdraw my membership with the understanding that, at any time in the future, I may have my membership reinstated. _____ I now live in. The 2004 General Conference redefined membership in the United Methodist. Church. It abolished the old classifications – Full Members and Preparatory. Use this sample letter to dispute mistakes on your credit report. I joined TNPC last month; however, I still need to write the letter officially terminating my membership at my parents' Methodist Church. All changes are published biennially.