Air India — Flying return miles

Address:	New Delhi, Delhi, 110037
Website:	airindia.in

I am registered on air india frequent flyer program with membership number[protected]. In february i have traveled to chicago with air india business class( return trip), but did not get miles credited in my account for that travel.To get it updated i have called frequent flyer call center 3 times and when i call them every one says please email your boarding pass copies to our travel docs email id, i have already sent that twice to them, still if i call them today again they will again say that we did not receive your email, please email again.
I have also tried sending email to their back end team many times but not getting any response about updating the miles. Here i am stuck that how should i get to their top management and get this matter resolved.I have a bunch of emails to cover this complaint, same can share with you if needed.