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December 03, 2017, 08:53:49 PM |
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Nope, it is impossible + and you sent using blockchain.info wallet, it means that they instantly put that transaction in to a block (they dont work as an exchange, trying to get some imputs)
And no, all the bitcoin transactions are not refundable, that is the main reason of why a lot of people are in love with cryptos, and the same happens with those scammers, they are happy too because they do not leave a trace under their shoes.
But for example, in poloniex or in bittrex, you are able to cancel a transaction because they use to include all the transactions after a new block, usually every ten minutes or five.
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