Ip banned for no reason?

[vampirepown....]

I recently got ip banned, well actually a few months ago. http://www.sythe.org/report-scammer-archive/1869440-got-scammed-vampirepown.html <------- this was the reason? This guy is claiming that i've bought something of him and never paid him. But i didn't agree with his offer so i declined the transaction and i told him that. Now I got banned because he claims that I've scammed him?

Don't mind my English please

 

Provide proof of you declining the transaction. We can't go on your word alone.