Maruti Suzuki India — false diagnosis of issue that cost me m4800

Address:

Kemse Vasti, Wakad, C-701 The Almonds, Pune, Maharashtra, 411057

I was facing the issue of battery drain whenever my car celerio vxi green remained park for more than two days. I informed this to ace kudale car in bhosari while puting my car for servicing. They diagnosis the issue and reported that battery is culprit and need to change. So i changed it from exide battery service centre for rs 4800. Few days back i again faced the issue of battery drain with new battery also. This time i checked my car the electric services and found the battery was not issue one the connection was made incorrectly that was using battery even when car is off. Now the issue is even the battery (Panasonic) was good, showroom told me to change. This cost me 4800 and i had to jump start the car whenever battery drained out. I want answer from showroom as well as from maruti suzuki