Again, thanks to you all for your views and advice.
Although not a programmer I've been involved with computers for years and can see the clear inconsistencies and discrepancies with the email content etc. I don't have any experience with trading bitcoins which is why I'm asking you (more experienced people) to chip in with your views on what has been sent to him, in relation as to what you would expect to see. So, thanks for that.
I did have a whiff of an issue with his 'trading' in late 2019 but couldn't really get enough details to be able to get involved. The coin-bits website was definitely '.com' back then so they've obviously moved to '.co' for dodgy reasons. Plus the website has been done by a company set up in Kingstown, St Vincent - major alarm bells there!
Unfortunately, my brother isn't computer savvy and he's been totally sucked into the scam.
On a more positive note, looking into bitcoins has me intrigued and I'm thinking of having a go - obviously following the valuable advice on here!
Cheers