Someone is copying my SteamID. I do not want anyone to go to them for trading, what should I do?

|steamID: Voidz | Ch4sey
|steamID32: STEAM_0:1:49163350
|steamID64: http://steamcommunity.com/profiles/76561198058592429
|customURL:
|steamrepURL: http://steamrep.com/profiles/76561198058592429

Thank you!