How to automate Amazon Associates earnings report download?

Question

Right now, we follow a manual process of downloading the Amazon Associates earnings report (https://affiliate-program.amazon.com/gp/associates/network/reports/report.html) in XML and then importing that data to our application.

If possible, we are looking for solution by which we can automate the downloading of that report so that we don't have to manually click the Download button.

Can you suggest some solution to this?