Dude u got ****** in ***.... RiotGames.Inc is League Of Legends, u can still ban this retards account, write a letter (Support Ticket ) to them that ur paysafe account was stolen and some 1 bought "RP" with it and they will prop give u money back if not they will ban this ******!
Sorry to hear that some people steal from others
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Edit:
Next time buy from people that have positive trades :/ like HaQi