Reliance Communications — Jio sim.. My phone code is using someone no security in the activation process

Respected sir... Tuesday27/9/16 i have generate the code and friday30/9/16 i visited to the shop to purchasing for the sim that time the executive have told me my code has using for some one the code has redeemed.. I don't know how that happend! I called the customer care executive and visited to the relance digital store at cochin. They have not respond and find any action to my complaints... So i request you to please find the user and block his sim nd please to rework my code for purchasing to jio sim... Please to find any action in my mail..