Flipkart — Delivered wrong item without invoice

I ordered Sigri-wala Cute-2B ISI Certified Steel Manual Gas Stove Black vide prepaid order id number OD[protected] on 07 Aug 22. Item was Shipped on Mon, 8th Aug '22 through Delhivery[protected] awb number). Item was not delivered till 26 Aug 22. On 26 Aug I received a msg from flipkart that your item is cancelled by seller. After that on I received msg from flipkart that your item out for delivery and it was delivered on 04th Sep 22. on received item I seen wrong item was delivered without any invoice attached. I raised return request same day but flipkart not approved that request till last date of return and return request is cancelled by flipkart on 11th Sep 22.Now flipkart not resolving this issue and my rs 1354 is stuck by flipkart negligence. Now i want return the product and want refund.