Flipkart — Samsung F13 mobile

I ordered new mobile from Flipkart online shops, they given me 2nd Oct 2022 as delivery date. On 2nd Oct they shown that item out for delivery, but they didn't delivered it. I didn't received any call from delivery person. Next day, status updated as delivery will be done on 7th Oct 2022. I don't know why they need 5 days to deliver this item, when item is already at nearby hub. So i called Flipkart Customer Service, but i didn't received helpful response. Today they are supposed to deliver as per revised promise date, but today I am seeing status as item will be deliver on 12th Oct 2022. This is not understandable. This order is prepaid order. Please help me in resolving this issue and I request to take serious action on shipper. Thanks.