Swiggy - Food not delivered

I ordered food from Swiggy and received a message that order was delivered which was never received by me. I checked with the customer support and they told me that they had a word with the delivery agent and it will be delivered within ** minutes and it was incorrectly marked as delivered. I waited for another ** minutes and contacted the customer service again and they told me that they are not able to contact the delivery agent and the order will be cancelled. I waited for more than ** minutes and Swiggy customer service is so irresponsible that they didn't even bother to inform me on their own.