Uber Eats — order cancelled but charged me the bills

Address:

22 Taj Nagar Manewada Road, Nagpur, Maharashtra, 440027

I ordered some food wrongly on uber eat on 1st july. It was done by mistake. Then i couldn't cancel the order. I got call from delivery boy who was in restaurant only. I said it was done by mistake. He said ok sir u call on our toll free number, then i called toll free and they said your order is cancelled. Now i ordered some food they are asking me to pay for last bill for which i didn't receive the goods, isn't this a complete loot from uber eats?
They are doing the same thing with many of my acquaintance.