Air India — hyd mumbai - paid for business class and got economy class seats and all facilities

Address:

Mumbai City, Maharashtra

Myself and and my wife opted for upgrade to business class from hyderabad to muscat via mumbai ai618 from hyd to mumbai and ai985 mumbai to mct on 3/9/2017
Lakshmy ramaswamy ragendran and jayashree ragendran
For sector hyd to mumbai i paid rs 10080 as upgrade chrges
Unfortuntly for this sector the seats were economy and food a slo economy class. This is not acceptable and hence please arrange to reimburse this upgrade amount
At the time of booking we were given seats like business class 3d and 3f
Just by providing a curtain on walk way and changing seat to blue color how can you fool customers saying it is business class?