I have an oscommerce based online store selling digital products.
I need to add an attribute to custormer's account called "credit";
Administrator should be able to edit custormer's "credit";
"credit" balance should be shown on custormer's account;
Custormer should be able to use his "credit" when purchasing product;
If his "credit" is not enough to pay for the products, then he needs to pay remaining through PayPal.
That's all for this project. Thanks.