Uber India — false billing

On 23/8/17 i used uber to dg police office, i was shocked to see driver saying i have to pay old payment of rs 50 which i refused, as nothing is due from my side, my previous booking, your driver refused to report at my place, he didn't answered my call, because of it i have to miss my important meeting, i lodged complaints to pay me compensation of rs 500/ which is still due from me, lnstead you have audacity to charge me rs 50, if you show this again i will go to press & report how uber treats the customers, i am yet to hear what action you have taken on erring driver,
I expect immediate action from uber
Shankaranarayana