Checked the sender exchange and no refund until now!
Then you should try to contact the support this exchange you used which is an brazilian( Bitcointrade) that the transaction they made for you is now double spent or removed from the network.
For now this would be the best thing to do is to reach up the exchange since the transactions is already on double spend which most of the time btc being sent was credited back into its origin. As blankcode suggested try to contact them and show them on the transaction link on your transaction as a proof that you havent receive any funds.