Ola Money — Money paid to driver but Ola money saying it is from the wallet and ask me to repay

I booked an Ola cab in Mangalore to the airport on May 10, 2023 at 3:20 pm (CRN: [protected]).
I paid the fare of Rs. 600 to the Ola cab driver in cash. Afterwards, on the same day I started receiving messages from Ola Money that it was postpaid.

I have been receiving calls constantly from Ola saying that I have to pay the money, although I have told them multiple times (via call and emails) that I already have, and that they can confirm with the driver as well.

They insist that I had chosen to pay via Ola Money (wallet) although I have not activated it and my KYC is still pending.
After multiple attempts of explaining they still keep calling and now have started to threaten to send someone to my house to collect the money.

I just want the harassing calls to stop.