Prestashop Custom Made Plugin (Simple Point Add/ Minus System)

We are doing retail business and online store, at our retail shop, for every purchase we will manually add some point under customer prestashop account for future gift redemption purpose... So we need a simple point system to ADD/UPDATE/DELETE /VIEW POINTS in prestashop. So that customer can view their latest point in their prestashop. We have to manually key in their own account based on (name, phone number, email, membership card number, date, etc) Very similar like creating a new user account. (PLEASE REFER OUR SAMPLE ATTACHMENT FOR MORE DETAIL) Using Prestashop 1.6 Admin Backend ============= 1. manual update the accumulate point from backend (everytime we add or minus the point must have a history update) 2. sort by phone number or email or membership serial number 3. Manually add new member Customer Frontend ================ 1. Customer can check their latest point after login frontend 2. Can see the history update (if the point add or minus) If you can develop this plugin, please contact me and your estimate quote. Thank you!