If the church is nearby, go there in person, copy of newsletter in hand. Tell them - in no uncertain terms - that if they don't remove you from their mailing list immediately, you WILL retain an attorney.
Very often, the mere threat of legal action is enough to accomplish what you want.
Boru
Very often, the mere threat of legal action is enough to accomplish what you want.
Boru
‘I can’t be having with this.’ - Esmeralda Weatherwax