PhonePe — cash back not received on gold purchase in apr-2018

Address:	562114
Website:	PhonePe mobile app

I have purchased gold (10gm) during akshayatritiya offer in april-2018. I was eligible me for cash back of 1600+ and got confirmation messaged on the same. But the cash back amount did not get credited till-date. Inspire of repeated follow-ups over mail and support tickets the amount is not credited still. Worst thing is now they are saying i have already claimed this amount!! Where as my wallet bal is 0 and said cash back transaction details are not seen in my account.

Can any body assist on filing case against phonepe.

Thanks
Venkata