Food Panda — money debited, order canceled, money not refunded

Address: Hyderabad, Andhra Pradesh, 500032

Website: App

I paid and amount around 345 on 2nd September, 2018 through TEZ. I verified my bank account and it was Debited. But the money is not yet refunded. I tried contacting them through app and mail. But no response from them.
They promised a resolution and are not responding. This happens regularly.

I will proceed further legally if they don't respond through this channel.