Ola Cabs / Ani Technologies — Repeated calls and messages to pay fee eventhough paid

I am getting repeated calls and messages from different numbers everyday almost 6 times a day .. How many do I have to say that I already paid the fare at the drop itself but still it says to pay ..
I hope that u try to resolve the problem as soon as possible ...

If not at compulsion I might lodge a complaint against you guys to cyber portal bcoz this issue I'm facing from almost 20 days but still no response at all ..
I hope u take my complaint serious and resolve the issue as soon as possible ...