Someone who say that he want to help me have just copy my addons

Hello everyone, I'm sorry if this post isn't in the good section but I'm so bad in english. Theres tree people who said that they want to help me but they didn't, when the people who tell me that they are going to help me developping my gmod serv were going into my ftp, they haven't help me but they have copy all my addons and they said me that they want 40 euros who come from my pocket or they are going to take all my addon. I'm really afraid because they said they have done this just because they want money and because "they have destroy a comunities" and they love to destroy my community and ban my scriptfodder account, they have ban a lot of player from my server, they have destroy my forum and they have take a lot of infos from my private life, they have called this thing a dox and they make it public, they said that they are hackers and can hack my FB, my Gmail etc ... What can I do, I haven't 40 euros to cancel what they want to do and I don't want to be banned from scriptfodder, I have to wait a lot for have all this money and buy all this scripts, if I'm ban it's a lot of time that I lost and a lot of money. I block them on steam and I have close my teamviewer, I don't want to lose month of word, I don't want to lose a lot of money, I don't want to be banned from this perfect website who is called scriptfodder. What can I do ? I'm asking for help. Sorry if I don't speak very good in english :-/ How did we contact the STAFF ? MrVotek