Flipkart And Supercomnet Complaints & Reviews

I placed an order for grocery through Flipkart grocery to the seller SuperComNet . I have received the package but found only 6 items from which I have ordered 12 items. 6 items were missing and I have already paid for it but didn't received the total products. I have given complaints regarding it for 5times but every time my return requests are being rejected saying that the reason they got confirmation for the delivery from their courier...

I ordered an oppo k1 (astral blue) order id OD[protected] on 12th feb 2019 in its launch sale with offers having buy back warranty and 10% of on payment using Citibank debit/credit card and it should be delivered to me by 14th of Feb but the delivery date extended to 16th not only this it again extended to 17th and keeps on extending continuously and now it showing that it will be delivered to me by 20th of Feb but the problem is that...