Tata Motors — Tata Tigor

Address:

Patna

At Shabkar Motor, Sales person not given hard copy of bill he sent soft copy of bill on whatsapp only and he said me that car will be delivered in a week.
He sent me soft copy of bill of dated 25th Feb 2020.

But since then he is not responding phone call and sms.

Even he didn't give chechis no. and other details of car as he said he would provide in only 2 days from the date of booking.

Please suggest what should I do?