Zoomcar — Money not refunded to me

I have booked a car from 20th may to 23rd may and when modifying the details it said i will be refunded and when entering the page, it said click on pay now, your money won't get deducted. But it did. The company charged me Rs 893 more. Why such scam? And when i called the customer care they were extremely rude to me. The page says to be refunded and i didn't get refund rather the money for deducted from the account. Pls help. This is the worst service.