Make updates in Multivendor Ecommerce System

I have a multivendor ecommerce project in final stage. 3 things are missing: 1. Full order cancel / return and Individual Item cancel / return from an order. 2. Reporting. 3. Select location from dropdown and show only sellers and items sold within that location. The project is in codeigniter. Till now, when a customer orders few items, he can cancel the order but not individual items. He can cancel only the complete order. Like any ecom site, we want that he can cancel/return individual item from the order. For refund, ratio of product values should be checked and shipping charges should be distributed accordingly for refund. Money should be refunded through the instamojo payment gateway from where the money was collected. Reporting means showing reports to admin and sellers extensively, regarding orders, cancellations, finances, sales, withdrawls, etc. Work should be finished within 2-3 days.

Project ID: 24247569