Food Panda — refund status

Foodpanda is a fraud, i ordered food from the app, the payment was unsuccessful. But no refunds even after more than a month. It had been for six of my orders. And talking to them they say they can't help as they haven't received the payment. They are thieves who steal people's money. The app should be banned going on such a rate they must be making money only by stealing public's money.