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

Hey everyone, I want some recommendation on a sketchy state of affairs involving a Binance P2P transaction. I’m fairly positive someone tried to tug a triangle rip-off on me.

It started once I was making an attempt to promote USDT for EUR. I discovered a buyer 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. Out of the blue, he messaged me saying he sent the money anyway and despatched a screenshot. I checked my financial institution 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 despatched it, but I couldn't see anything, so we left it at that.

Two days later, €300 truly hits my checking account, and I acquired a message from him asking me to verify. The cash was there, however my intestine advised me something was off. I informed him I might return the cash, however only by way of a direct bank switch back to the exact origin account. He refused and stored insisting I send him the equivalent in USDT as an alternative.

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

I have officially reported the consumer and the transaction to Binance help. Now, I’m simply sitting right here with €300 in my bank account. Ought to I simply depart the money untouched till a bank or the precise victim claims it? Has anyone skilled this actual state of affairs earlier than? Any recommendation is appreciated!