Cheating

I order a tumbler in online and i payed 1000/- for the product on 14/19/2026. Today they told to me! Mam, you will have to pay Rs. 1299/-, from which Rs.99/- GST will be deducted and Rs.1e 1200 /-will be refunded to you in the same account within 2 minutes. Mam, you will be provided a new QR code, just 2 minutes process ma'am Two step verification two minutes like this i transfer the money and again they ask 2000/- for second verification then transferred the amount and they told to refund within two minutes you then they aks 2800 for refund fee total 6000 /- then i ask about refund that time they told should i pay 4000/- because of my account limit is 10000/- like that they told to me. I payed 10000/- now they again asking 5000/- but i told i don't have. Without paying 5000/- they will be hold my refund amount 10000/- like that they said