Custom woocommerce wordpress work

When we add to basket we store values in the session that characterise products in the basket. We then recover those variables from the session to display relevant messages, perform calculations etc. We require the following modifications to be displayed at checkout and in the customer alert emails: 1. Display a Deposit figure calculated as 20% of basket total, styled up to match costs block. 2. Display bank details for BACS payment based on variable stored in session (ie payment information will vary depending on what products are in the basket) 3. Display cheque address details based on variable stored in session We also need so minor changes to the [login to view URL] file Cosmetics are really minor. please see attached.