Delhi Transport Corporation [DTC] — Excess fare

Bus no - DL1PC1370 . Conductor refuses to take bus passes and being a green bus with bus no 764EX, asks me to pay 20 RS from the original 10rs ( from manglapuri bus stand to vasant gaon )
He gave me 2 10rs bus tickets, he did the same with other people too
There was this other guy who had no cash on him, and the one delhi app showed a max ticket of 15 rs for that bus, the conductor asked him to Paytm him, 20 RS but he refused . So he has to leave the bus