In other block explorer this transaction doesn't appear and as expected I didn't received any bitcoins
And now its a double spend transaction (my first time to experience :l ) Thanks anyways for the replies, I've been just fooled
Never accept payment without a confirmation, these long chains barely confirm and they are hard to detect unless you check for them. Later TX in the chain can pay a high fee, so you cant look at the receiving TX alone.
Yeah my bad, actually it was from here :
https://bitcointalk.org/index.php?topic=1356016.0 , I tested a few btc and he said it was an instant one,tried it and actually it is. But it end up that he's scamming
Thanks for the advice anyways