It is not possible to scam on a regular p2p transaction. I recommend that your brother makes a request to get support to help him receive his payment.

#scam my brother just got scammed on p2p and the scammer buyer name fast-trading-indian . he mark the order as paid and it show on the payment it' did not send .. and my brother's last 16usdt got freeze .. guys can any one help how can help my brother to unfreeze the account ? and brother told him to pay on the upi id but he scammed with digital erupee.