Maruti Suzuki — wrong diagosis and parts changed

Address:

Pathanamthitta, Kerala

2009 Ritz bought from Perthalmanna which was not available that time. Had several issue in the past but it was solved properly. Now my car has 50000km+ had a battery problem. Bought a new battery. But still having problem and I, called Kochaulmude service center. They took three days to diagnosis and said that I need a new speedometer which I never heard about it and last forty years I lived in USA and it is illegal. As a professional service people I agreed to change the speedometer. They took few days to get the parts. They brought the car after they changed the part. But after two days I dad the same problem. So I called the service department to come and get the car. Now they said It is the battery. So I used a old battery which was given by the battery store, So there no problem with old battery. So they given me a new battery and solved the problem. In conclusion originally the problem was the battery and the service department wrongly replace the speedometer. Now who is compensate my speedometer money. I request an investigation and take an immediate action