Advice:
Make sure you check the amount sent to your account before releasing the coin. But not only that, make sure it is the right amount because the scammers are sending an amount similar to (but lesser than) the amount that you are expecting to receive.
I use to advise on this, that if you're doing p2p trade, then pay attention to it very well and avoid being distracted, because you cant afford to make a mistake that will cost you the loss of your money, because that is why we are making use of an exchange we trust to be more reliable for p2p and we cant afford being the one to now make a silly mistake because of lack in paying attention on what we are doing.