Banned for self-trading?

I've been banned for self-trading recently but I never did that. My brother posted on my threads not me and he did it out of sincerity. I do stuff for him and he does what anyone else would do. He said something nice and so I posted in my signature. But honestly, I'm trying to keep him away from my threads now since he's just flaming me with stuff he won't follow up on since I'm his brother. Like payment. But I just try to ignore him and continue my business. Apparently Spyke thought I was him and was doing it for vouches, which I'm not and I will take off the comment he made in my signature. My Sythe name is Ibuyaccsforwow just incase some moderators want to know.

 

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