Ola Cabs / Ani Technologies — ola charges even after paying

Sir,
This is getting actually troublesome for me as from last three times, I am charged by ola in the name of postpaid amount even after paying it through cash or so.
On 20 October I got the message that I am charged with 358 rupees and I should pay it online.
This is really worse experience with ola as after paying the money these messages are flooded with fines and compulsions to pay the already paid amount.
Kindly see, what can be done.
Dr.Harsh Bala Sharma