Tata Motors — Tata Tiago Issue facing with in 1 month

I bought tata tiago recently . With in 1 month started getting the issue. Door is not opening . 1 door become blocked . Cannot open the door. Went to service center still no action has been taken. And now suddenly car is not at all getting started. Called service center, they came for checking the issue. They were not able to find out the issue and was asking to give good feedback. Although i said no he started taking video and constantly forcing me please give feedback . I was in full tension as suddenly morning car is not getting started so somehow given feedback so that the person leave as he was irritating so much not ready to leave at all.Very bad service got from tata . It took delivery late and after sales service also bery bad .