Pay Fee to Withdraw Money

Based on a group recommendation I started trading in FXTM from my Trust Wallet at fxtms.org which had the logo of FXTM (see pict below). I did some diligence and saw FXTM was legit and regulated. So I did some trading with small money and had some success, and was able to withdraw my funds. I than added $22,000. After some trading (ups and downs), I was able to get my account to $67.000. I than tried to withdraw about $30,000 and I received an email asking me to upgrade to a premium account before they release my withdraw. Of course this upgrade requires me to pay a $13,000 fee which I did not do. Never was this explain to me till I attempted to get my money back. Basically a bait and switch and they are holding my money hostage for the fee. If someone can advise me on getting it back that will be appreciated. I think this was a SCAM - from the group to platform used. I will add a copy of the people and there pictures on the group as well.