Bangalore Metropolitan Transport Corporation [BMTC] — Digital Payment Declined

I was travelling on a bus numbered 500D from Ramamurthy Nagar to Sarjapura Signal on the 20th of June, 2022 at around 9 AM. I paid my ticket fare through Google Pay using the QR code that was stuck to the window of the bus. However, when I showed the payment receipt to the conductor, he declined it cutting it was only for passes.

Why was it not mentioned clearly that the general public cannot pay using this mode?

I lost the ticket fare I paid online as I was asked to pay in cash.

The bus number plate reads KA57F3267. I attaching prod of my payment to the company.

Please address this issue as soon as possible as I might not be the only one taking for this trap.