Flipkart — My refund not received cancelled order

What could I do if Flipkart is not refunding my money which they deducted from my paytm wallet? The order was not placed, and Flipkart is not taking any steps to return my Rs. 1019. On 7th October at 11. 52 my order is placed and amount debited. Then instantly i got cashback of 100rs.but order not taken i have waited 4 days but not recieved my order. So i contact them but till now 25th October my refund not recieved. Order id is OD[protected]. Paytm not responding paytm Wallet transaction id is [protected]. Order id of flipkart which paytm recieved is PZT[protected]X6ZWQ01. Please help me in refund from flipkart and paytm. No response from both. My request to everyone font pay online. Cod or try to shop directly from market. Many times my amount got strucked and many things happen. My own experience i am sharing don't buy online in prepaid