Ola Money — Excessive amount I pay so I need refund

I do the two transaction with ola money postpaid on 27 sep 2022 for payment of mahindra finance loan and money was deducted form ola money account postpaid
I do two transaction amount of 3703 one of them Is clear dues on 8 th oct. one amount is refund back by ola money on 11th oct
So I call to customer care they said your both transactions was unsuccessful so I ask for refund that amount I paid to ola money on 8th oct
From that day I still not get refund