Uber — Demanding extra fare

I booked an Uber on 11.03.23 . Initially the amount to be paid was Rs. 381. But when I reached my destination and the driver completed the ride, it showed Rs. 386 as the final fare on the driver's phone's green screen. I paid the driver Rs. 400 instead. But then notification came that Rs. 76.52 still remains unpaid and i need to pay that amount. This is very disappointing.