Bluedart — Charged double

I received two order from Adidas through bluedart on 12 January 2022. At first i tried to pay Rs.2799 through paytm but the transaction didn't go through at that time so i had to pay with cash. After 30 min i received a message from my bank that Rs.2799 was debited from my account. So i called the delivery boy and he told me to reach customer service. At first i reached Adidas customer service and they were very quick to get back to me. I tried to reach Bluedart customer service but everytime i tried to call them it says busy. It has been more than two months and i have not received a refund from the company.