Hyundai Motor India — workshop complaint

Address:

Kanpur, Uttar Pradesh

I visited in hyundai work shop shastri nagar kanpur on 27.7.2017 in morning. Air conditioner of my i20 elite car was not working. Registration no. Of my vehicle is up 78 dp 6058. I was told that vehicle may be delivered in evening.
But in evening it was told that vehicle will be delivered tomorrow (28th of july)
Now after 4 days again workshop supervisor is saying that vehicle be be deliver tomorow. We could not diagnose the problem.