Tata Motors — Service center not performing job perfectly

Address:

358 A, chandmari, Kanhaipur, Jaunpur

Myself Alka Singh, I bought Tata Tiago NRG on 30 Aug 2021. Today on 14th September 2021 I went to Puneet Automobiles, near Jagdishpur Railway Crossing, Jaunpur for the first servicing. I had also booked over the phone before going for servicing. After two hours he said that today washing is not possible as the pump is not working. After taking Sign on the document, returned the car in the same condition as I had taken there. Why didn't they tell me earlier that don't come for servicing today, why did they waste my time. is it good?
Did I make a mistake in visiting that service center? Action should be taken against such service centers so that they do not let people lose their trust in Tata Motors.