clothing online fraud

There is a profile in instagram named Riya fashions of clothing retail , I ordered 2 dress which was 950, n mode of payment was just online so I mistakly transferred 1000 , so I told them I accidently transferred 1000 bult they asked me to again put the exact 950 amount and told me , only if I put 950 then 1000rs which earlier I put will be refunded, so I thought it's true n put 950, and now they. are telling 999.2 is shipping charge, so only if I pay this my order wi be verfied and amount of 10000 will b refunded, so I thought something fishy in this and asked them to cancel my order, n now they are telling to cancel order there is minimal charge of 1300 only after I pay this all the other money will be refunded, I refused it n asked there shop address, the address which they have is a fake address. they are using other shop address in this name in hyderabad, so while purchasing clothes online, if anyone ask delivery charge of 999.02 Be aware it's fraud and fake. finally lost my 4000, I no there is. no use carrying this to cyber crime.