Payzapp — cashback not provided

Address:	Thane, Maharashtra, 421201
Website:	play.google.com/store/apps/details?id=com.enstage.wibmo.hdfc&hl=en

Payzapp had a cashback of 50% up to rs.100 on bookmyshow.
I booked a movie on 6th november 17:06:17 hours for amount of rs.201.24
Txn id:[protected]xg19in1
It was promised that the cashback would be credited within 7 working days.
But even after mailing to [protected]@payzapp.in many times and calling to only support center [protected] regularly the cashback has not been credited till now.
Such fake apps should not be allowed to exist itself.
Playstore is full of negative reviews now and i feel like uninstalling the app but i want my deserved cashback of rs.100