Do you have a Binance account? Did you ever transferred there some coins? Is this transfer in your wallet transactions list? It's the RPtVVaPqstQeXNYfEb32YfAibsQ4YcueVr on your wallet sending addresses list?
To clarify the situation I suggest you to contact Binance (https://www.binance.com/en) asking about this transfer. I am almost sure their have a lot of logs. When I transfer something to Binance provided addresses (in general it's a fixed address per user, as ...Vr looks) they know a lot about the sender (including email address). So I think it's a good idea to ask Binance.
Thanks for the help. Binance has never done anything on the exchange. There is no account there. I'll try to contact them. I see all my transfers through the blockchain.