Medlife — the amount is not refunded

I had ordered 3 medicines [syndopa 110, prexol 0.25, ebixa 10]. The amount i had paid is 886.67 through my credit card. After that they confirmed that only syndopa 110 is available so they modified the order and delivered that syndopa 110. But the balance amount is not refunded yet. I have already notified medlife customer support agent once. But still the amount s not credited to that account.

Order id: #or3778ju-001a
Amount to be refunded: 772.00/-