Uber India — Multiple charge but no refund

Multiple charge but not got refund .There is online payment option which was not working so have to pay cash to the driver and the app show outstanding amount so we can not book another without paying outstanding amount.We have to take a ride from Bangalore airport to Sarjapur a road in the month of July.Without knowing by mistake we paid the previous outstanding amount thought of current ride by gpay and the money got deducted for the 6 month back which was already paid earlier.So I tried to contact them through the uber app but they keep on saying it was an old ride so they couldn't help.Yes I know it was an old trip but my money has been deducted for that January trip now in the month of Jul'22 and it is rs 1413.