From the conversation:
"Clause 1.8 of the Terms provides that we may freeze your account in the event that we suspect or have reason to believe you are engaged in suspicious trading or other activity or have breached any of the warranties under the Terms or any other provisions of the Terms. In accordance with the Terms, we have implemented a ban on withdrawals from your account (i.e. a partial freeze), and we reserve our right to take any further restrictive action we deem appropriate in relation to the account."

That sounds like they might do whatever they "deem appropriate".

Will keep posting here.