I was banned for an unknown reason and never told

This is Skordallos, I was banned months ago, I think sythe was possibly hacked but I'm not sure. I had a great rep on sythe, I had my own mils shop with many vouches. I was just randomly banned one day and never told why. I would like to join sythe again after taking a break from runescape, but I can't do that seeing as how my account is banned?? Help please