Flipkart — Not delivered and refused by company

I ordered a Puma football stud on 5th October 21 (costed me RS 1766.)on 11th October 21 it was shown delivered in my Flipkart app .but it was not delivered to me. on 14th October 21 I reached the customer care and opted for a callback which I didn't receive. I called again on 19th October. this time I got call back and raised my issue. over the next few days I got mails and calls regarding the issue. they said that they were trying their best to solve the problem .but the last time Flipkart said that they couldn't help with the problem as I have reached them after 7 days of the showed delivery date. which is wrong because i texted them on 14th.