Medlife — not received refund amount

Address:

5th & 6th Floor, Vaswani Centropolis, Langford Road, Shanti Nagar, Bengaluru, Karnataka 560027

I recently ordered n-95 masks for which the amount of 600 was paid online too. Due to the product unavailablity, i received a following message:

Your order or5263wgb-002a has been modified due to unavailability of the following products, mask n95 safent mens pm2.5 - large. We will be delivering the remaining medicines as per promised schedule. Customer support[protected]

And the delivery guy delivered other medicines i had ordered and said i would be receiving my refund amount for the unavailable mask in next 48 hours. It’s been more than 15 days and no response to my calls or mails from medlife.