Lenovo — no proper bill given for lenovo p2 phone and out of warranty phone given

I had called lenovo asking where to get lenovo p2 phone. They had told to buy from flipkart, their authorised distributor. On may5, 2018, i got a phone set from them which was out of warranty and without the bill having the phone imei!!!

Since more than one and half months now, i have asked both flipkart and lenovo to give me a proper bill and to replace the handset with proper bill. They have refused to do so. Other companies like xiaomi do help customer in similar circumstances but both lenovo and their distributor flipkart have ignored all pleas to help each is telling to contact the other rather than doing something for the customer.

Lenovo, please contact at [protected] and give me proper bill and handset.