Kenstar — Very Bad Customer service

Address:

Hyderabad, Andhra Pradesh

I am not concerning about money but the company and its customer service.I lodged complaint with kenstar[protected] for requiring service for my unfunctioning cooler.Service person came and replaced the battery.He said battery cost is 750 and service 250 i gave that and asked for receipt.He didnt give that and left the home same thing i informed to customer care but they said its my mistake so they cant help it.My request is if customer complaints about their service mans work why company is not taking any action.I dont want money but i need proper explanation on this. can you help me ?

Thanks
Praveen