Sourcing and respect rules
Facts about a specific church's system come from that church's own published pages with dates (the LDS page is the model). Interpretation questions inside a tradition are pointed back to that tradition. And every page carries the fraud-avoidance basics, because giving searches are a phishing target and a donor guide that skips that is negligent. Sister site aiforchurch.org covers church operations from the leadership side.
Corrections
Email hello@donateto.church; corrections on any tradition's practice get priority and a grateful reply.