What do you advise me to do
Does that mean the amount transferred has gone
Sorry to say but it's gone, there's nothing you can do about it, you can't reverse it as well since bitcoin was not designed for that. What you should do right now, is to serve this as a lesson.
Remember that website template, most scammers used that website look/UI. Also, avoid to good to be true offers from unreputed website, use google with this keyword "website_name review" and you will find bunch of webpage regarding that site, if there's no information on google, you may ask questions here or to any community forum related to the website niche.