While it hasn't been an issue yet, is it possible to prevent Open from allowing a refund in excess of a client's balance by a change in the settings or only allowing an amount equal to the existing balance? A client might have a $0 balance but the system will still allow a refund in any amount. If development is required, verification to ensure the same payment type is in the history would be of benefit as well.

If someone really wanted to steal, they wouldn't document it in the system, this would be a verification step to maybe catch errors before they occur. 

Thanks, Alan