Questioning them is just a waste of time as for sure they won't answer and give any explanation why to believe and trust them. Though we are not sure if this is an attempt to trick people and scam, it was better to stay away from this kind of service to be safe. If we are going to trade, then help ourselves to improve our knowledge and market understanding rather than making ourselves a fool from scammers. Because what they can do, we do as well and even make it better than them.
Nothing wrong if there are people who will follow them without money involved. But the fact that they will soon ask for money from their users is already enough reason why people shouldn't follow them. Even though they are a legit provider of signals and really have experienced has it, that kind of service has a bad reputation here in the forum and no one should believe that there's a so-called premium signal.
Lots of tools around which a newbie trader can use to help and guide them on their trading journey.