Whirlpool India — washing machine semi

Address:

Pune, Maharashtra, 411006

I am from pune. I had complained about my whirlpool semi automatic washing machine on 18/7/2016. The technician said that the capacitor needs to be changed. He charged me 950 for the capacitor and gave me a bill by the name of s. S. R. Engineers, authorised service of whirlpool india. But the capacitor had no packet and no price mentioned on it. Niether did it have any whirlpool mark on it. He just gave the bill and said, "mam i have given u the bill so obviously the price is genuine."
My question is do technicians use only whirlpool products while changing any part. How can we ensure that the part and price they have quoted for it is genuine? As there is no packet and since they come from the company, we have no option but to trust them.
Secondly, when i called up the whirlpool customer care centre to enquire they had just one reply, "mam i[censored] have to register a complaint u will be charged 350 rs". And for everything i enquired, he just said, mam u must be having the bill of the service centre. So please call them and enquire about the price and the part. So my second question is if it is a authorised service centre of whirlpool india, aren't customer service executives capable of answering to a simple query and why should we call whirlpool india? Next time we might as well call the service centre i[censored] r so incapable of solving simple problems. Why should i have to be told to call the service center? It is ur duty to ensure that your authorised service centres are providing the genuine parts and charging the right amount. So u have to take action and provide the necessary solution. Not we.