PlayerAuctions Blackmailing Me. Con Artists! Fining me $450.00 and Refuse To Fix The Issue Internet

I was sent and email of them wanting $450.00 in fines? For supposed offsite trading that I was told was alright to do so by the power seller team and support team. My reputation is flawless, I have a good customer base. I was told that I can link my playerauctions account on other websites confirm who I was on playerauctions.com message system and make my sale. There is another seller who does this named Zaxxis and he was the reason I first emailed them about it, they told me it was ok to do so. Now that I have done so they have shut down my seller account in which I make a few hundred a week to live off of and was told this was 100% ok. Now I get a email with bogus fines. I think these fines are scams and whoever reported me is trying to scam playerauctions or is an ex-employee making these so called offsite claims. Because my customers are loyal and would never do this. 90% of my customers are return customers. My main complaint is I was told it was alright now there saying its not and trying to fine me. I just want a formal apology and my account reinstated. I did nothing I was not told I could do. If I was not able to do so then they should have not told me it was alright. I have solid documents showing members of management telling me it was alright to do what I was doing and was not considered offsite trading. I will strongly consider a lawyer if this is not resolved.