This is definitely a sophisticated scam. I have contacted the National Fraud Intelligence Bureau.
I invested £6500 back in December 2019 following my own due diligence and was sent various brochures, articles (allegedly written by the Guardian Newspaper) - then sent my account details and a link showing how my £6,500 was being invested and growing. Having got my 'hooked in'. They persuaded me to make a further £16000 investment in February of this year, and that's when everyone disappeared and no replies to my emails. Phone number just went through to a messaging service initially, but now it is constantly 'engaged' and the only mobile number I had of Peter James is no longer in use. I tried using the website to cash in my original £6500, but the link goes nowhere.