Zomato — not able to cancel my wrongly processing order

Address:

560037

Hi today i have faced one bad situation with zomato customer support, without my authorization amount got deducted from my wallet and order got placed. Even i have tried to cancel my order but it's not allowed me to cancel. Within seconds i have contacted customer support to cancel my order it has placed wrongly. I don't want the order plz cancel the order. They have informed like they can't cancel the order since it's already placed.

My humble request may i know the reason how amount will deduct from my account without my authorization once i click on place order (This order i didn't placed wantedly - it got placed unknowingly).

Even i have asked support team please cancel this order just a second back i placed this order.
They are not supported and i said them i will complaint this they said proceed. Please find the screen shot attached for chat conversation.
Even i got angry for their support.

Plz consider this as my humble request and complaint and ask them to keep authorization from the customers before payment process otherwise other customer also face this kind issues.

And also help me to refund back from the app since it's zomato support issue.