National Payments Corporation of India [NPCI] — Payment not credited to Beneficiary

Address:

Lenskart.com, DBS bank

I am not sure whom to raise the complaint against in this case. I tried to make a payment for a product from Lenskart.com on 30th Jan, 2021 from my DBS, Digibank account using their UPI ID under transaction reference No.[protected]. The amount was for ₹1414.82 which was debited from bank, however got the message from merchant site that the payment failed.
Later I made payment from ICICI bank and the order was confirmed by Lenskart.
Now when I am disputing the amount which was debited from DBS bank, they are saying that the amount was credited to beneficiary and declined the dispute.
I then contacted Lenskart and they are confirming that they have received payment only from ICICI bank and nothing from DBS bank on 30th Jan.
I am attaching the replies from both DBS bank & Lenskart and the screenshot of both my bank statements which shows the debit transaction to Lenskart.