Keep in mind though, it is illegal to record phone conversations without letting the other party know that the call is recorded... Hence the standard 'your call may be recorded/monitored for quality assurance purposes' notice you get when calling most large companies.
Without the recording notice, your 'proof' on tape may well be dismissed if you would want to take a dispute to court or something.
Without the recording notice, your 'proof' on tape may well be dismissed if you would want to take a dispute to court or something.