Mswipe Technologies — Payment issues towards instakart services via Mswipe link

I made a payment of 3400 rupees for an online product from Ekart on (May 11 2021) using mswipe amazon pay transaction upi. The delivery guy mentioned that the mswipe payment did not reach their account and refused to deliver the item. And didn't return the amount paid. The amount neither processed into instakart nor reverted to my account. Customer care is not at all responding and disconnecting the calls in middle of the conversations