Puma — Partial/missing product delivered vide order no[protected]

Website:

in.puma.com

I have made an order with Puma India on 7th August, 2021 vide order number[protected] for Purecat Unisex Slides and BMW Motorsport Slim Fit Men's Sweatpants for an amount of Rs 2932.20/-- in total and they delivered me the only the partial cheaper product ie Purecat Unisex Slides which amounts to Rs 759/- and have not delivered the BMW Motorsport Slim Fit Men's Sweatpants which amounts to Rs 2, 499/- . The delivery of this Partial/Missing product has been done on 10 th, August, 2021, vide DELHIVERY.
I have been constantly following up with Puma on this since 10 th August, 2021 when to my surprise i see that whole order being marked as delivered.
Even after constant reminders, mails and calls, customer support team just asks me for more time and says..We are either checking with warehouse or the Transporter, to which I am not getting any resolution.
Neither are they providing me any proofs of Delivery, even after asking for the same so many times.
I just want my concern to be heard on all levels .. Either they give my Product or my hard-earned money back !!