Flipkart — Previously delivered product invoice needed

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Flipkart

I've ordered a samsung mobile and boAt airdopes earphones from flipkart last year 23rd November 2022. I need the invoice number to claim warranty of my devices but the invoice option is not showing in the app. Only the product is delivered thats all its showing. No invoice page. Neither did flipkart email me, my invoices for both the items. I need my invoice for both of them rn.