Indian Overseas Bank — UPI refund

Sir/Madam
On March 20th i cancelled my order in big basket. They say that they have initiated the refund amount ( ₹3342 ) the refund reference number is 9cb10ca7588d93f8b6e4. But till now i haven't got the refund amount. My account number is [protected], please help me to get the refund amount.
Thanking you.