Whirlpool - Technician replaced duplicate capacitor

I bought Whirlpool White Magic Royale *.*kg **th April ****. The product is very good and satisfying.July **** I faced a small problem in my machine and I rang up to customer care service, they send a technician, he came and solved the problem and received the service amount. Then he changed the capacitor of the machine, I ask him why you are changing it, he said the company itself asked to change the capacitor after two years. That time I got mild doubt and checked the capacitor, letters on the capacitor was bouble printed. But it was my foolishness I believed the technician's words. The next day Outlet of water was repaired I rang up to technician and said about the fault he came and changed the equipment and received Rs.***,I rang up to his number because he said the service amount I paid to him will be free of service for one week. Then after * or * days I faced another problem that the machine did not spin, he came he rotated the drum twice or thrice and the drum spinned. For few weeks it was normal, again the machine did not spin,I did the same what the technician did and used the machine,rarely I faced the spinning problem but now before * or * months ago often I faced the problem.Now I realised that he[technician]took the original and replaced the duplicate. So I rang up to the same techician and said about the fault he came and checked and now asking rs.**** for repair. So I rang up to customer care service last month in starting dates and asked whether the company asked to change the capacitor of machine after * years with free of cost, they said no, and I raised a complaint on the technician.So the customer care service gave the helpdeskindia@whirlpool.com I mailed but there was no response.Again I rang up to the customer care service they gave the service manager[vignesh] phone number. From him also I did not get proper response. And then I mailed to ceo mail and to the head quarter mail id also but till now there is no response. I do not know what to do. Please help me. Nearly two months I am fighting for this. I googled what will happened if a bad capacitor is used in the washing machine. The same I am facing now. To solve the problem he is asking rs. ****. I have voice recording as proof that company technician changed the capacitor and replaced bad one.