Very very slanted letter
I had the letter. Pages of bumf telling me how wonderful it was, no warnings at all. A multi-page booklet on all the wonderful things it could do. A form to send off for more information.
And if you want to opt out? Well, it did get mentioned. But there's no form for that, and it's not one of the options you can send off for. To opt out you have to go to a web page or phone a number.
So I download the pdf from the web page. A three page document. Two and a half pages of telling me how wonderful the system is and how I shouldn't opt out, and a half-page opt-out form to send to my doctor.
And all that was on that form were standard identification details, and a signature and date.
It would have been no problem whatsoever to include that form with all the pages of other stuff. But then of course people might have seen it and used it - they might actually have made their own choice instead of being bulldozed by our 'democratic' masters.
Even if I hadn't previously intended to opt out, that form would have made up my mind for me. It makes it perfectly clear that their claims and promises are nothing more than standard NuLab lying in their teeth.