Data Scraping from Online

We require a specific column to be scraped from the Online portal. This scrape will involve a specific column being scraped and it's contents being exported into a CSV file. This CSV file should have two columns, one with the tracking number obtained from the Royal Mail Website and another with the internal sales code.

Currently the procedure is as follows:

1) Login to rmdmo.co.uk
2) Go to Archived Shipments
3) Select the date range applicable
4) A table comes up with the information of shipped items

We need to be able to select the date range applicable