MakeMyTrip India — Did not receive the cashback

Address:	122016
Website:	www.makemytrip.com

Hello,

I used citibank card to book flight at mmt website, there was offer running at 5july-2016 for rs 1200 cash back so i booked flight . But till now i did not receive the cash back.
My booking id is : nf[protected] .
I asked customer care regarding this issue but they are saying that they have transferred cash back at 2nd sept-2016, but i did not receive it.
When i asked for reference number or any id related to 1200 cash back, so i can check with my bank, then they are saying we do not have any number.
They are just saying that have transferred 1200 cash and not giving any proof or any reference number.

They have closed my complain without resolving it. Please help me on this.

Thanks,
Kundan singh