How to install or activate the Discount module by payment type?
01) Access control panel
02) After login click Modules >> Orders
03) Select the discount module by payment type
04) After clicking the Install button
05) After installing click the EDIT button
06) Fill in the fields as requested to configure the discount module by payment type
07) To view the payment module code access the control panel >> modules >> payment >> by passing the mouse over the payment you can view the code to be filled in the Payment Type field to offer the discount by type of payment