[Resolved]  Pepsico India — coupon code and expiry

Address:

New Delhi, Delhi, 110062

I bought a 600 ml bottle of pepsi cold drink on 15/12/2018 and the coupon behind the label read "terms and conditions: valid on 250ml, 300ml, 330ml, 600ml, 750ml, 2l, 2.25l bottles of"pepsi'. Valid from 10 am on 1st march 2018 till 11:59 pm on 31st july 2018. Offer valid in selected geographies only. Pepsi also available without this offer. Sms your location to [protected] and get a list of outlets offering discounts. Sms charges to apply. Carry the label to any of the outlets indicated via sms and avail discounts on food. Not valid on home delivery. For detailed t&cs visit, https://www.facebook.com/pepsiIndia/. detailed t&c's to prevail."
But the manufacturing date read - 20/11/18.
What is the company doing with the offers showing the dates that have already occurred when the manufacturing date is much after the offer validation dates.
This is a pure cheating with the customers and playing with their trust. I want the company owners to have a check on this and pay for this unethical practice.