I don't know if you are actually participating in a discussion or trying to increase post count and thus, payment. This is same with admins. They can't know either. So you should put more effort in posting. Honestly, your posts looks spammy to me. 
Ok, if that is it, which it isn't. Then the admin is supposed to let me know about it.
I have sent messages to the admins but haven't got a reply yet.
And its easy to say a post is spam, if you consider it after being banned. But they aren't. And it was permanently banned which makes it seem the spamming wasn't the reason.
If the seller's other account got banned so will be yours. You took that risk when you bought it.
I checked, his account hasn't been banned.