Trainerjorn

So this person asked me to trade his own kadabra with him because he wanted it to evolve. But he traded it but it is a sinnoh pokemon. So now it is locked in my box and i can not trade it back. He is really mad and he wants to report me so he can get me banned. His name is bestcharizardo. Please do not punnish me for this i have nothing to do with this person. Just give him his kadabra back. With kind regards JornMeister