I have integrated an extension which rewards some Credit Points to the customer when they return any product. These points are only assigned from backend.
Now, the customer can use this Credit Points during any purchase. But in case if the Order Grand Total exceeds the Credit Limit, then the customer is forced to choose some other mode of payment.
But instead, I want to convert these Credit Points into Discount Coupon and allow the customer to place the order. How can I implement this??
Any help will be appreciated. I am using the following extension: http://www.magentocommerce.com/magento-connect/credit-point-payment-4321.html