I'm not the topicstarter, so can't be sure. But I've met some info that freewallet often moves coins to something they call "cold wallet". It sounds incredibly weard since cold storage means no internet connection. And if some storage is not connected to the internet, then how can you withdraw your coins any time you wish so?
Since they are scammers and their intention is to ultimately steal your coins, you are not going to withdraw anything anyway. Cold storage means they are storing the keys physically or digitally on machines that are not connected to the internet. Freewallet is a custodial service, so you have to ask them for permission to withdraw your own coins. When they see the withdrawal request, they act on it. Or in Freewallet's case, they start requesting documentation and ask questions until you give up or can't comply.