A reasonable starting point is making a simple timeline showing when the account was created, which actions were taken, and when the extra charge appeared. Pairing this with a screenshot of the membership tier helps keep the request structured. When everything sits in one place, directing the question toward discussions at https://ashley-madison.pissedconsumer.com/review.html provides a clearer reference. The combination of calm wording and documented steps usually results in a more cooperative response.