At this forum is a representative of this service (blockchain.info)?
This is their ANN thread
Blockchain.info - Bitcoin Block explorer & Currency StatisticsBut the OP of it has been inactive in the forum since 2015 so the only way to keep on conversing with them is through their support / ticket.
I ask them to help me find the one who carried out this transfer. I want to ask him to give me back the coins and to know how it had happened. But the service does not provide any information.
They won't know on who's the one responsible for stealing your bitcoin and we all know the attitude of a robber, they won't return something that they've stolen.