Food Panda — regarding payment taken but order not delivered

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Food panda app

Placed an order through food panda app on 22 oct at 9pm and made an online payment too.in the app the order was showing preparing and that the delivery boy rajesh lalchand vaish was on his way to collect it. However even after an hour it was still the same status. Called the restaurant from which the food was ordered, and was surprised to be informed that the order had not only been picked from them but also marked as delivered with the pin being used as well. Such pitiable service from food panda, the food that was paid for never reached us. It is nearing 12 now and we tried the food panda customer service / helpline numbers but all are invalid.
Will refrain from using this app, not interested in getting fleased once again