Paytm - Cancellation of product by seller

I was checking out vans shoes on paytm app on * aug ****, then i came to an offer of ₹**** cashback on a pair of shoe which was costing me **** at the time of placing the order and it was written that the cashback will be given to you once the item is shipped. And the delivery time is given by **aug****. After *th of august i was continuously checking the order details whether the seller dispatched the item or not but nothing was happening, i was curious and excited about the pair of shoes about when it will be delivered but as of now the seller hasn't dispatched the item. Today when i woke up i checked my phone and there was a msg from paytm that the seller cancelled your order. N i was like depressed and didn't quite find a solution. After waiting for so long what i got is misery. They had provided me an offer n i booked those pair of shoes and now they cancelled it. I'M feeling like humiliated. It is affecting me mentally. Even the order was successfully approved after that they have cancelled it after * days of wait. This happened in delhi today. I m attaching the screenshot of the order details. And it was also written in order detais that the amount has been refunded to your bank. But i haven't recieved any amount neither in my Paytm wallet nor in my bank account. I want my loss to be recovered and the compensation of the mental harrassment. I'M also giving the seller information. The ne of the seller is "vans" and the seller details are as follows "d-***, upper ground floor, near rajinder nagar, new delhi, delhi-******. Right now if I'M trying to check the other products from this seller nothing was actually appearing as if the seller account is totally fake but when i ordered there was an complete list about more producta by this seller. After investigating a bit i have found the there is an another account of the seller "savita retail stores" from the same address as of seller "vans". On savita retail stores the shoe is available for buyers at ₹**** which was earlier at ₹**** on vans profile. It seems like a completely fraud company and fraud act. Kindly take actions against this for the financial loss and mental harrassment.
My e-mail id- verma.tushar***@gmail.com