Medlife — amount not refund against medicine not delivered

Request to refer my order #OR9435GPA-007A as ordered on 31-Jan-2020 name ARIN DAN to supply 3 items. Medlife has delivered only 2 items and confirmed to refund excess amount Rs 390-48 for non delivery of item and the same is confirmed in message on 2-Feb-2020 But till date Medlife has not refunded as the amount is not yet credited to my account.
Received phone call from Medlife about refund for non supplying medicine.
But till date I find no credit to my account. It is getting delay more than two weeks till no action is initiated to refund.