Emre,
I have setup a loyalty bonus for customer accounts (% credit based on spend), but how can we stop an account going into debit? We need a way to deactivate the Customer Accounts payment button if Payment Amount is higher than Customer Balance.
As with all Gift Cards, they cannot spend more than whats on the card, so how can this be enforced. Keeping in mind that we would run both credit only accounts (Gift Cards), and debit accounts for business customers who would pay monthly.