A dispute is one thing. A chargeback another. My understanding is that under Visa/MC rules, a chargeback must be given effect. That comes from testimony given b

A dispute is one thing. A chargeback another. My understanding is that under Visa/MC rules, a chargeback must be given effect. That comes from testimony given by a Visa security officer in a criminal case. If that is not true, I'd sure like to know.