They will entice you with emails advising of funds sitting in your account and encourage you to verify your account with government ID. You won't be able to withdraw anything until you select a plan starting from a £500 investment.
Do not confuse these scammers with trade212 who are a legitimate and regulated company. Protrade212 is unregulated and the website was set up only to dupe people into parting with their money. You won't ever get anything back from them! Avoid at all costs!