bloo777 all you can do is report to IGG. We can't do anything about it here. All I can say is turn your trade off while you play and blacklist the person. It happens a lot with people I know. Just this morning in guild chat a friend was talkinga bout how someone expressed some low SP food to the persons burst team so they couldn't recover their sp and ended up wasting time that they could have been bursting.

Yeah it's rude that someone would do something like that bloo777 but still. We can do anything here. You should just report that person to IGG.