Volkswagen India — lhs mirror motor changed without customer permission

My car met with an accident in sep2017 near goa, we have given the car for service in goa modi service center. Got the car after three months to bangalore via road side assistance.

After receiving the car, the lhs mirror motor was not working. Went to bangalore elite service center and was informed that the lhs mirror motor is changed and its not highend polo motor. Contacted goa service center and informed that they have not changed anything. Tried to escalate it with vw customer care and they simply say we raise an escalation and once i call after week, will be informed that the case is closed as they cannot help.

Now as a customer whom should i contact, when service center say they cant do anything and customer care says they cant help.

Its really frustrating to call customer care to raise a case and finding it closed in a week with comments as they cant help

Vw - didn't expect this kind of service

Recent case # ccr129837