Paytm — shopping issue

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Paytm

I purchased a bluetooth earphone from paytm. I have already done payement for it and it is not being delivered now. It was supposed to be delivered by 13th september but no clue where my product is right now. There is no updation in tracking details and whenever i try to contact them, there is no option of texting or calling just simply a pre recorded text display which says your product will be delivered by 13th sept. And when i try to call, they won’t pickup.