He said I had to make an offer on a specific advertisment by an user and that I had to copy paste a name and a number given by him, that this person was his friend and he will inmediately know what to do, I did as he said.
They have a chat box. Did he ask to send those info in the chatbox.
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I don't understand this part. You said he deposited the money to your number/bank whatever which means you owe the crypto to him. Then why would you even need the customer support?
Honestly, from your writing it is difficult to understand how the chronology of this scam was carried out.
He got scammed in a pretty lame way, so here is the TLDR
1. The scammer got his mobile phone number
2. Scammer called and he offered him a very good deal with a trader, telling him that in order to get that deal he must tell he was referred by him by copy-pasting his name and a number in chat
3. OP entered the chatbox, and copy-pasted not only the referral name but also the scammer's bank account
4. The scammer sent the money to that bank account which was obviously his and took the coins too
OP can't do anything because he entered in the chat the scammer's payment details instead of his own, so Binance can't do a thing. Imagine that everyone would claim tomorrow that the own payment details he entered in chat are not his own..
3. So I make a trade with him
4. I received a sms message saying that I got the local money already (I didn't check my wallet, that's my fault)
Sorry for the loss but didn't you find it weird, as I assume you had multiple transactions that there was a different number and no sense id? Of course, I might be wrong but here all the banks have a sender ID and you can't buy any name resembling a bank from any SMS provider.