Paytm Mobile Solutions — Paytm delivered stone instead of phone

Website: www.paytm.com

I have ordered lava x81 16gb (Gold) from paytm website on 30/11/2016.
Order no is [protected] from brand e store. It was a prepaid order. I paid rs.9499. The item was shipped by wow express with tracking id p[protected]. I had received the package on 5/12/2016 afternoon. When i opened, there was only the outer box but inside, there was a stone instead of phone. I immediately registered a complaint to paytm ticket # 11862578 and handled by ankur through e-mail and by phone call. He asked to fill up the customer undertaking form and send all the photos of the product that i received. I did all that. Later, he asked the digital weightage of the package. I also sent all the details. After few days, i got a phone call from wow express regarding the complaint. I also told them that i received a stone. But then, on 16/12/16, he replied that full scale investigation was done and told that correct product was delivered! How could paytm be so irresponsible even after providing the full details? Paytm hasn't shared the mobile's imei number, serial number and other details! No mobile was delivered to me! Please take immediate action for my payment rs.9499 + 1 month my stress for this penalty against paytm!