Maruti Suzuki India — Ignis air conditioning problem

Bought the ignis delta petrol (Mt) on the year 2017 march. Till date it has run about nearly 6800km. Last day i travel for a 80 km, long distance with a. C on whole time. At the last hour i. E after near about 65 km. The cabin feels hot inspite of feeling cold, where as i kept rhe blower speed at 2nd position.

I maintain my car regularly with all kinds of engine coolant etc., but this unexpected behaviour of the car gave me a great shock. Before this i like this car very much, but this thing give a very negative impact on me.