Myntra.com — Wrong Tsirt and Jean's were not delivered but were marked as delivered.

I had ordered 4 products on opening the package I fond only 2 items. And later got the msg that all 4 items has been delivered. Raised the issue with myntra customer care. And they acknowledge the issue and let me know that they would resolve it by 17th Oct with in 5 -6 days. And had also mentioned to them the package may have been tampered as I see the package was glued from bottom which was slightly open. And it didn't had bill as well in package. And I did confirm with delivery person and he asked to raise it with mantra. And after 6 days on 17th Oct they told that they will not be able to deliver the product or refund as they have recording of packing it. So please help me in this regard as see the package was tampered and told the same on call with both delivery person and customer care. I do have call recording. Please do help me resolve it.