Amazon India — Lenovo product received faulty and service centers are not accepting invoices downloaded from amazon.in website.

Address:	Pune, Maharashtra, 411014
Website:	www.amazon.in

We purchased lenovo vibe K5 dated 13th July 2016. On 13th August phone stopped working. We approached Lenovo service centre with invoices downloaded from amazon.in site but service centre denied to accept the downloaded invoices and asked for VAT invoices.But original invoices which were received with product are misplaced from our end.But we dont have received any mail containing PDF copy of VAT invoice. Also we approached to amazon India customer care but they told us to contact seller directly.If this is the way then we will call sellers for our orders also why we need Amazon as mediator.
Kindly provide me my VAT invoices and also arrange to replace faulty mobile received.