Amazon India — not providing me invoice for my mobile phone with imei number.

Address: Firozabad, Uttar Pradesh, 283203

I have been asking for invoice with imei number written on it and the amazon service care center executives are just postponing it from a month. My device has stopped working. I cannot repair it because the service centre of motorola is not accepting the invoice provided by amazon as imei number is not there.
And it has been a month still amazon service is sending me the same invoice with no imei. I am without my phone.