Ola — Oladash

I ordered 7 items amounting to a total of INR 409 from OLADASH on[protected] at 8:00 PM. The app advertised it will be delivered within 10 minutes, and there was no option for COD. I paid INR 409 via Amazon Pay as and once I went back to the app the order had not been registered.
After waiting for some time I could see that there was no intimation from OLA about my order.
After a few more minutes it started showing that my order had been received at the store and it would be delivered, I was relieved. But after 10 mins of waiting when I checked up on my order THERE WAS NO EVIDENCE OF ANY ORDER PLACED BY ME. NOTHING. Everything was cleared and as if I was trying to order for the first time.
To add to my misery, I could not find ANY CHANNEL AT ALL TO CONTACT SUPPORT about this! Not only do I not have my items, but I am also out of 400 rupees!
I am hugely disappointed in oladash, I just demand the refund of my amount as soon as possible.

I am attaching the amazonpay receipt for reference.