Indian Bank — I'm complaining about my refund

I have a refund to be received from zomato which was initiated on 23rd march 2020. It has been more than 7 days yet i haven't received the money! I've checked my transactions via net banking.
With my rrn i wanted to track the status but the india bank customer care number asked me to wait as there were many calls to attend and i waited for literally 37 minutes but still no agent answered.
I am very disappointed by this action from the indian bank.