Smytten — Payment deducted from my account but they haven't received

I have paid the so called shipping amount which is 199 against a order. The amount got deducted from my account which i paid through a upi app. The payment shows completed. In the smytten app the situation is transaction failed. But I haven't got any refund for my money and no order was placed. I tried to contact them through mail but there was no reply. Then I contacted them in instagram they replied. They were like we haven't received any amount from your side. Please check in your bank account. What the hell I did send them the screen shot of payment and they haven't received money how can that be possible