SBI Account Debited 599 ₹ via Master App UPI: Full Refund Requested

I hold an account with SBI, and on 20 August 2026 around 599 ₹ was debited from my SBI account ending with 9373 through a UPI transaction connected to an application called “master app”. Along with a small 1 ₹ payment for a trial, the total loss for me is about 600 ₹. I downloaded this app and paid 1 ₹, but I did not properly notice that further money would be taken, and now 599 ₹ has been deducted from my account. After seeing this deduction, I immediately contacted SBI customer care and asked where my 599 ₹ had gone and requested a refund. SBI customer care told me that the money went to the master app and that I should contact the master app for the refund. When I called the master app support, they did not help and the responsibility was pushed back and forth between SBI and the app. At the end, I was left without any clear help or refund for my 600 ₹. I request that this situation be examined urgently, that my 599 ₹ taken through the UPI transaction (plus 1 ₹ already paid) be refunded to my SBI account ending with 9373, and that I be clearly informed about how such a deduction was allowed. I expect support so that this loss is not left on me and similar issues do not happen again.