Redesign Magento checkout form and Fix ecorepay integration

I need someone to redesign the magento checkout form because it is showing 2 address field boxes when it is suppose to show 1. In addition, I need someone to fix ecorepay integration on wordpress + woocommerce website. The problem is it is sending a hard coded expiration date instead of sending in variable expiration date entered by the customer. Example: Customer types in "2018" for expiration date for the credit card and ecorepay is sent "202018" instead. It is adding an extra value when it shouldn't be.