Received €300 from a cancelled P2P transaction. Buyer blocked me after I refused to send USDT. What should I do?

Hey everybody, I want some advice on a sketchy state of affairs involving a Binance P2P transaction. I’m pretty positive somebody tried to tug a triangle scam on me.

It started once I was making an attempt to sell USDT for EUR. I found a purchaser with a reliable-looking profile and opened the order. He greeted me and stated he was continuing, however time ran out and the operation was routinely cancelled. All of a sudden, he messaged me saying he sent the cash anyway and sent a screenshot. I checked my bank and nothing was there, so I informed him it didn't arrive, that the order was cancelled, and asked him to please not do anything. He insisted he sent it, but I couldn't see anything, so we left it at that.

Two days later, €300 truly hits my bank account, and I obtained a message from him asking me to examine. The cash was there, however my intestine informed me something was off. I informed him I might return the cash, but solely by way of a direct bank switch back to the exact origin account. He refused and stored insisting I ship him the equal in USDT as an alternative.

Because of this, I referred to as my bank to request a reversal. My bank advised me they couldn't do it on their finish and that I had to manually transfer it back myself. I made a decision the most secure route was to tell the customer to go to his financial institution and request the reversal himself. But once I went to message him, I noticed he had already blocked me.

I've officially reported the consumer and the transaction to Binance help. Now, I’m just sitting right here with €300 in my checking account. Ought to I just depart the money untouched till a bank or the precise victim claims it? Has anybody experienced this actual state of affairs before? Any recommendation is appreciated!