Hyundai Motor India — very bad repair service

Address:

431122

Hiii,
I m dr dnyaneshwar from beed, maharashtra. I met with an accident last month, 9th jan 2019 and submitted my grand i10 asta car to deep hyundai showroom here at beed. Initially i was told that my car will be ready in 15-20 days or most 3 week.
Today i was surprised to know that they started doing repair work just 2-3 day back and informed me that it will still need another 8-10 days.
Will you please explain what exactly are these guys doing here?
Did i make mistake asking you people to repair my car?
Cant you people say truth?
Please tell me exact time limit you people want to get it done.
And i also want written explanation with timeline, why it took this much of time. Or please donot return my car to me at all.